Answers
The surface highlighted in the image is articular tubercle, which suggests that option B is the right answer.
The articular tubercle refers to the bony eminence situated on the temporal bone in the skull. It is also known as eminentia articularis. The mandible articulates with the maxilla at the temporomandibular joint. The tubercle which is present immediately after the neck is a prominent on the external surface of the ribs which contains a medial facet that articulates with the transverse process of the numerically corresponding vertebra column. Articular tubercle is a protrusion of the temporal bone that creates the frontal root of the zygomatic process.
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Related Questions
which gamete is the result of recombination in the parent: ab/ab? please choose the correct answer from the following choices, and then select the submit answer button. answer choices bb aa ab ab
Answers
Alleles A and B are located within the same chromosome, and recombination in the parent produced the ab gamete.
What is a simple definition of gamete?The organism's reproductive cells are called gametes. They are additionally known as sex cells. Germ cells are referred to as sperm, whereas female gametes are referred to as ova or egg cells. Every haploid cell that makes up a gamete contains a single copy of each chromosome.
What is gametes and zygote?Unfertilized reproductive cells are called gametes. The zygote is an egg that has been fertilized. Gametes are always haploid cells since they are a byproduct of meiosis. Zygote is indeed a diploid structure because it results from the fusing of a male and female haploid gamete.
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What is the purpose of a
functional group?
A. to make molecules non-polar
B. to help molecules separate from
water
C. to build inorganic molecules
D. to assist molecules in chemical
reactions this is the answer
Answers
Answer:
D
Explanation:
functional groups are atoms or group of atoms that are made responsible for the physical and chemical properties in an organic compound
Answer:
D
Explanation:
to assist molecules in chemical reaction this is the answer
Mendel studied pea plants dihybrid for seed shape (round versus wrinkled) and seed color (yellow versus green). Recall that
the round allele (R) is dominant to the wrinkled allele (r) and
the yellow allele (Y) is dominant to the green allele (y).
The table below shows the F1 progeny that result from selfing four different parent pea plants.
Use the phenotypes of the F1 progeny to deduce the genotype and phenotype of each parent plant.
Answers
Mendel researched round versus wrinkled seeds in pea plants and seed color (yellow versus green). Just to refresh your memory, the round allele (R) is dominant to the wrinkled allele (r), and the yellow allele (Y) is dominant to the green allele (y).
What are the genotypes of the pea plants that produce green and yellow seeds, respectively?Thus, the genotype of a heterozygous yellow-seeded plant will be "Yy," whereas a green-seeded plant will have the genotype "yy" (as the recessive allele is expressed only in homozygous conditions).
What is the genotype of the parent of the yellow round?As a result, genotype YYRR stands for the pure-breeding round yellow parent, while genotype YYRR stands for the pure-breeding green wrinkled parent. Character-specific gene pairs assort independently of one another during gamete development.
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which of the following communities is the least diverse?group of answer choices50 squirrels, 75 oak trees, 60 maple trees15 lions, 100 zebras, 80 giraffes40 bass, 60 minnow, 55 blue gill4 crab spiders, 76 goldenrod, 60 echinacea5 elm trees, 7 beech trees, 6 birch trees
Answers
4 crab spiders, 76 goldenrod, 60 echinace communities is the least diverse among the given options resulting in species count among the community.
A species is a unit of biodiversity and a fundamental taxonomic classification for an organism in biology. A species is the largest collection of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. In addition, a species can be recognized by its karyotype, DNA pattern, anatomical features, behavioral traits, or ecological niche. Additionally, paleontologists support the chronospecies theory since fossil reproduction cannot be investigated.
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Dietary fat is absorbed through the intestinal endothelial cells and then transported in the lymph system in the form of _______ bound to or part of _______ A. Fatty acids; serum albumin B. Fatty acids; chylomicrons C. Fatty acids: apolipoproteins D. Triacylglycerides; serum albumin E. Triacylglycerides; chylomicrons F. Acetyl-CoA
Answers
Dietary fat is absorbed through the intestinal endothelial cells and then transported in the lymph system in the form of triacyl glycerides bound to or part of chylomicrons
Because lipids, such as cholesterol and triglycerides, are insoluble in water these lipids must be carried in conjunction with proteins (lipoproteins) in the circulation. Large quantities of fatty acids from meals must be delivered as triglycerides to avoid toxicity. These lipoproteins are essential for the small intestine to absorb and transport dietary lipids, for lipids to travel from the liver to peripheral tissues, and for lipids to travel from peripheral tissues to the liver and intestine.
Hence, triacyl glyceride and chylomicron are two mode of lipid transport in intestine.
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Which is an example of co-dominance?
A. Baldness
B. Hemophilia
C. Roan Cow
D. Pink snapdragon flower
Answers
Roan cow is an example of co-dominance.
What is co-dominance?
In terms of genetics, codominance refers to an inheritance pattern in which two variants (alleles) of the same gene are expressed differently in order to produce distinct phenotypes in a person.
A heterozygous state known as codominance occurs when both alleles at a gene locus are completely expressed in the phenotype. Codominant alleles are those that have an independent influence. Both phenotypes share dominance when it occurs in codominance. Codominance is best illustrated by the ABO blood group.
Therefore, Option C is correct.
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nilsson-ehle found that three loci contributed to kernel color in wheat, resulting in purple, dark-red, red, light-red, and white kernels. if there were more loci involved in controlling this trait, the number of possible kernel colors would . please choose the correct answer from the following choices, and then select the submit answer button. answer choices increase decrease stays the same not enough information given
Answers
Nilsson-ehle found that three loci contributed to kernel color.If there were more loci involved in controlling this trait, the number of possible kernel colors would increase.
There were all gradations from the deep red of one parent to the pure white of the other parent so that the plants could be divided into 7 different color classes in the ratio of 1:6:15:20:15:6: 1. Nilsson-Ehle was able to distinguish 6 phenotypic classes with different intensities of red as follows: 1 dark red (like a parent), 6 dark red, 15 red, 20 medium red, 15 light red and 6 very light red (Fig. 4.1). Only one of 64 plants produced completely white seeds and another of 64 had red seeds identical to the parents of the first cross.
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A hypothetical population of 200 cats has two alleles, T- and Te, for a locus that codes for tail length. The table below describes the phenotypes of cats with each possible genotype, as well as the number of individuals in the population with each genotype. Which statements about the population are true?(picture)Heterozygotes make up 20% of the population. Homozygotes make up 80% of the population. Homozygotes make up 30% of the population. In the entire cat population, 60% of the alleles are TS. In the entire cat population, the frequency of the allele is 0.5. In the entire cat population, the frequency of the allele is 0.4. Assurning random mating, each gamete has a 50% chance of having a hallele and a 50% chance of having a 7 allele. Assuming random mating, each gamete has a 40% chance of having a Tallele and a 60% chance of having a 7 allele.
Answers
Alleles T and Te make up the population's gene pool for tail length. The frequency of the T allele is 0.4 (160/400). This can also be stated as 40% of the alleles being T.
Te has a 0.6 allele frequency (240/400). The fact that 60% of the alleles are Te is another way to state this. Therefore, assuming random mating, each gamete (sperm or egg) has a 40% probability of carrying allele T and a 60% chance of having allele Te.
Heterozygotes make up 20% of the population, according to these statements.
80% of the population are homozygotes.
60% of the alleles in the cat population as a whole are Te.
The frequency of the T allele in the total cat population is 0.4.
Every gamete has a 40% probability of having a T allele and a 60% chance of having a Te allele, assuming random mating.
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rank the following mutations with respect to their likelihood of affecting the structure of the polypeptide (from most likely to affect structure to least likely).
Answers
A deletion mutation in the gene's first exon. substitution mutation in an exon's second codon position. a codon in an exon that underwent substitution mutation at position three. Deep inside an intron, an insertion mutation.
Which protein mutation is the most harmful?On the other side, deletion mutations are the opposite of point mutations. They entail removing a base pair. The frameshift mutation, the most hazardous sort of point mutation of all, is produced by both of these mutations.
Which type of mutation harms the amino acid sequence the most?Insertions and deletions typically do more damage than substitutions, which only affect one amino acid, since they create a frame-shift that alters the reading of succeeding codons and, consequently, changes the entire amino acid sequence that follows the mutation.
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Tides will be most visible:
-on shores and coasts
-in the middle of the ocean
-wherever the water temperature is warmest
-in freshwater bodies, such as lakes, rivers, and streams
Answers
Tides will be most visible on shores and coasts.
What are Tides?Sea levels rise and fall during tides as a result of the gravitational pull of the Moon (and to a much lesser extent, the Sun) paired with the Earth and Moon's orbiting one another.
To determine the anticipated times and amplitude for any location, tide tables can be employed (or "tidal range").
The Sun and Moon alignment, the phase and amplitude of the tide (the pattern of tides in the deep ocean), the amphidromic systems of the oceans, the form of the shoreline, and near-shore bathymetry are only a few of the variables that affect the predictions (see Timing).
They are simply estimates, however, as wind and tide are factors that impact the tide's exact timing and height.
Therefore, Tides will be most visible on shores and coasts.
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What cellular process does telophase occur?; What happens in the telophase stage?; What happens in telophase ?; What is the process after telophase called ?
Answers
Telophase is a stage of the eukaryotic cell cycle, which is composed of interphase, mitosis, and cytokinesis.
What is a eukaryotic cell?
A eukaryotic cell is a type of cell that contains a nucleus and other organelles enclosed within a membrane. Eukaryotic cells are found in all multicellular organisms, including plants, animals, fungi, and protists. They are distinct from prokaryotic cells, which are found in single-celled organisms, such as bacteria.
Telophase is the final stage of both mitosis and meiosis, which are processes that divide the nucleus of a single cell into two daughter nuclei.
During telophase, the two daughter nuclei form and the nuclear envelope begins to reform around each daughter nucleus. The chromosomes also condense into chromatin and the spindle fibers begin to break down.
The process after telophase is called cytokinesis, which is the process in which the cytoplasm of the cell is divided up into two daughter cells.
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In fruit flies, red eyes (E) is dominant over white eyes. Give the three possible genotypes that fruit flies could have and the phenotype that goes with each.
Answers
The possible genotypes that fruit flies could have EE, Ee and ee.
What are genotypes?The genotype of an organism is its complete set of genetic material. Genotype can also be used to refer to the alleles or variants an individual carries in a particular gene or genetic location.
A genotype is a scoring of the type of variant present at a given location (i.e., a locus) in the genome. It can be represented by symbols. For example, BB, Bb, bb could be used to represent a given variant in a gene.
The different types of genotypes are- homozygous recessive (pp), homozygous dominant (PP), and heterozygous (Pp).
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Researchers have found a human protein (Protein X) that is a useful therapeutic for certain diseases. Protein X doesn't have any significant post-translational modifications and is a relatively small and water-soluble, globular protein. Therefore, Protein X can be expressed in its active form in the bacteria Escherichia coli. Expressing Protein X in and purifying it from E. coli will make it a much more affordable therapeutic. In order to do this, the researchers sequenced the mature mRNA that translates for Protein X in order to get the nucleotide sequence for the mature mRNA that codes for Protein X. They are now going to insert this sequence into a plasmid and transform that plasmid into E. coli , and then express and purify the protein. Which of the following should they also do before they insert the sequence into a plasmid and then into E. coll? Choose one or more: O A. If the mRNA contains a UGA stop codon, then change it to a UAA stop codon. O B. Add a sequence to encode an affinity tag (such as 6 histidine amino acids) at one end of the gene for Protein X. O C. Synthesize the DNA that is complementary to the mature mRNA sequence, and insert that into the plasmid instead of RNA. O D. Change most of the AAA codons that encode for the amino acid lysine to AAG codons.
Answers
The step which they also do before they insert the sequence into a plasmid and then into E coli is b)Add a sequence to encode an affinity tag (such as 6 histidine amino acids) at one end of the gene for Protein X. So, correct option is b.
The second step is needed because the grouping of amino acids deposits in a protein is characterized by the succession of a quality, which is encoded in the hereditary code. By and large, the hereditary code determines 20 standard amino acids; yet in specific living beings the hereditary code can incorporate selenocysteine and — in certain archaea — pyrrolysine.
Not long after or in any event, during union, the deposits in a protein are in many cases synthetically changed by post-translational change, which modifies the physical and substance properties, collapsing, strength, movement, and at last, the capability of the proteins. A few proteins have non-peptide bunches connected, which can be called prosthetic gatherings or cofactors. Proteins can likewise cooperate to accomplish a specific capability, and they frequently partner to shape stable protein buildings.
Hence, correct option is b.
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. small, nonpolar solutes can pass directly through the selectively permeable membrane of a cell, this is described as the of solutes.
Answers
Small, nonpolar, lipid-soluble compounds can quickly pass through the plasma membrane's phospholipids.
What is a membrane in a human?Body membranes are incredibly thin cell sheets that line body cavities, cover organs inside of hollow organs, and cover the body's surface. They can be divided into connective tissue membrane or epithelial membrane.
What is an example of a membrane?Your don't have to look far to find an example of a membranes: your skin is a type of membrane. Although thin and flexible, membranes are often robust enough to protect whatever is inside of or beneath them. Membranes, such as those that enclose your cells and organs, are frequently studied by biologists.
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Which list the provides the correct enzyme order required for nucleotide excision repair of a thymine dimer? 1.helicase, DNA polymerase, DNA ligase 2.nuclease, DNA polymerase, DNA ligase 3.DNA ligase, nuclease, helicase 4.nuclease, DNA polymerase, RNA primase
Answers
list the provides the correct enzyme order required for nucleotide excision repair of a thymine dimer is nuclease, DNA polymerase, DNA ligase.
Base excision repair (BER) involves the removal of the damaged base by the glycosylase enzyme followed by the removal of the phosphate in the backbone by AP endonucleases. The proper nucleotide is then replaced by DNA polymerase beta (), and the break is then repaired by DNA ligase enzymes.
Five fundamental processes comprise the repair procedure: (1) base excision; (2) incision; (3) end processing; and (4) repair synthesis, including gap filling and ligation. Image 3. The structural underpinnings of how BER enzymes interact with their DNA substrates.
To repair DNA with AP sites or base damage, BER only needs four or five enzymes in the fundamental reaction steps. One DNA glycosylase, one AP endonuclease, one DNA polymerase, and one DNA ligase are among these. BER begins with the removal of a damaged base by the DNA glycosylase.
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briefly summarize, in approximate chronological order, the steps in the innate response to a bacterial infection. include both the cells and the molecules that are involved in the response to the bacteria and what each does. g
Answers
Both innate and adaptive immune responses are part of the immune system.
Natural innate immunity develops as a result of genetics or physiology; it is unrelated to illness or immunization and serves to lighten the strain on the adaptive immune system. Intricate cell-to-cell communication, secreted proteins, and receptor-mediated signaling are all components of the immune response at both the innate and adaptive levels. Around a billion years ago, the innate immune system began to evolve in animals as an important defense against infection. A small number of distinct pathogens are the only targets for innate immunity; each pathogenic threat sets off a predictable chain of processes that can detect the pathogen type and either clear the infection on its own or mobilize a highly focused adaptive immune response. For instance, mucus and tears have microbicidal properties.
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which of the following double mutants could show synthetic genetic enhancement? select all that apply. A) Two null mutants (A, B) in genes with redundant function (A -> C, B -> C). B) Two hypomorphic mutants (A, B) in the same linear pathway (A -> B -> C). C) A constitutively-active mutant (A) and a null mutant (B) in genes with redundant function (A -> C, B -> C). D) Two null mutants (in A and B) in the same linear pathway (A -> B -> C)
Answers
The correct option in which double mutants could show synthetic genetic enhancement is B)Two hypomorphic mutants (A, B) in the same linear pathway (A -> B -> C).So, correct option is B.
Double mutants portrays a person that is conveying homozygous transformations in two distinct qualities. With regards to mouse hereditary qualities, a twofold freak is generally delivered by crossing individual heterozygous for transformations in two distinct qualities.
In science, and particularly in hereditary qualities, a freak is a life form or another hereditary person emerging or coming about because of a case of change, which is by and large a modification of the DNA succession of the genome or chromosome of a creature. A trademark wouldn't be noticed normally in an example.
The term mutant is likewise applied to an infection with a modification in its nucleotide succession whose genome is in the atomic genome. The regular event of hereditary changes is indispensable to the course of development.
Hence, correct option is B.
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starting in the spinal cord, trace an impulse through the sympathetic division of the ans until it reaches a target organ in the abdominopelvic region.
Answers
In the abdominopelvic cavity, there are preganglionic neurons, T5-L2 neurons, collateral ganglia, postganglionic fibers, and visceral effectors.
Can a cavity be filled?Phosphate from mouthwash or other sources, together with minerals from saliva, can help the enamel heal itself. But additional minerals are lost as the dental caries process progresses. The enamel weakens and breaks down with time, creating a cavity. A filling is required by a dentist to fix a cavity since it is lasting harm.
Can you ignore a cavity?Untreated cavities may result in discomfort and infections that make it difficult to eat, speak, play, or study. Cavities that go untreated can develop in an abscess (a dangerous infection) behind the gums, which might spread to other areas of the body but have significant, and that in rare cases deadly, effects.
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what is the difference between active and passive transport across the plasma membrane?; three main differences between active and passive transport; difference between active and passive transport with examples; similarities between active and passive transport; types of passive transport; which best describes the role of endocytosis in cell transport?; active and passive transport examples; is osmosis active or passive transport
Answers
Active and passive transport are systems that are meant for transporting molecules through the cell membrane.
Active transport necessitates the movement of molecules, whereas passive transport does not necessitate the movement of molecules. Active transport involves molecules moving against a concentration gradient, whereas passive transport involves molecules moving along a concentration gradient.
There are three main active transport methods - ion pumps, exocytosis and endocytosis.
What is the main difference between active transport and passive transport?
There are two major ways that molecules can be moved across a membrane, and the distinction has to do with whether or not cell energy is used. Passive mechanisms like diffusion use no energy, while active transport requires energy to get done.
Four Main Kinds of Passive Transport are Found:
Osmosis
Simple diffusion
Facilitated diffusion
Filtration
Osmosis is a type of passive transport in which water molecules move from low solute concentration to high solute concentration or low water concentration across a membrane that is not permeable to the solute.
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The louse leg is tipped by claws formed from the tibia and tarsus. We call these the ____________claws.
Answers
Claws made of the tibia and tarsus tip the louse leg. These are referred to as tibiotarsal claws.
The tibiotarsal joint connects the tibia and the tarsus in the anatomy of people and many other species. It corresponds to the ankle in avian anatomy.
Bog spavin is the term used in equine veterinary science to describe synovial distension of the tibiotarsal joint in horses.
The big bone in a bird's leg between the tarsometatarsus and femur is called the tibiotarsus. It involves the proximal tarsus and tibia joining together.
The Mesozoic Heterodontosauridae also had a similar structure. The similarity of their foot bones is best explained by convergent evolution in these small ornithischian dinosaurs, which were unrelated to birds.
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Which of the following processes do glycolysis link reaction citric acid cycle and electron transport chain belong to?
Answers
Glycolysis, the citric acid cycle, and the electron transport chain are three distinct metabolic pathways that work together to form cellular respiration. While the other two mechanisms are aerobic, glycolysis is anaerobic.
The process known as pyruvate oxidation is required in order to convert pyruvate molecules—a product of glycolysis—into the citric acid cycle. The first pathway in cellular respiration is glycolysis. This anaerobic route operates within the cell's cytoplasm. This process yields two pyruvate molecules and disintegrates one glucose molecule. Glycolysis consists of two halves, each with five stages. The "energy needing" steps are the ones in the first half.
This portion divides the glucose and consumes two ATP. The second half of glycolysis can start if pyruvate kinase levels are high enough. In the "energy releasing" stages in the second half, 4 ATP molecules and 2 NADH molecules are released. There is a net gain of 2 ATP and 2 NADH from glycolysis. Some cells (like mature mammalian red blood cells) are unable to respire aerobically, therefore their only source of ATP comes from glycolysis. However, most cells oxidize pyruvate before moving on to other cellular respiration pathways.
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Correct Question:
Which processes does glycolysis link reaction citric acid cycle and electron transport chain belong to?
classify the following examples based on whether they were ideas proposed by the keynesian theory or by financial and monetary theories. assume that there exists a downward wage rigidity.
Answers
Assume that wages are rigidly declining. Think about a stable economy. Let's say that at this point, households in this economy anticipate continued economic growth. Complete the feedback loop that follows to reflect the multiplier effects of this shock on a modern economy.
What does the Keynesian theory say?
According to Keynesians, since prices are somewhat rigid, changes in any spending component—consumption, investment, or government spending—cause output to change. For instance, if government spending rises while all other spending factors stay the same, the output will rise as well.
Keynes' theory led him to recommend lowering taxes and increasing government spending in order to boost demand and rescue the world economy from the Great Depression.
The idea that the best economic performance could be obtained and economic downturns could be avoided—by influencing aggregate demand through governmental economic intervention a concept known as Keynesian economics was later used to describe this idea. The full employment and price stability that Keynesian economists think are achievable through such action.
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Which of the following is NOT a bacterial pathogen transmitted by the bite of an animal? Bartonella henselae Plasmodium vivax Pasteurella multocida Streptobacillus None of the answers is correct; all of these bacterial infections can be transmitted by dog or cat bites
Answers
Animal bites do not spread the bacterial infection Plasmodium vivax. Here option B is the correct answer.
A protozoal infection called Plasmodium vivax is transmitted by the Anopheles mosquito. The parasite Plasmodium, which causes malaria, is a single-celled parasite that reproduces both in human red blood cells and in the stomach of mosquitoes.
Plasmodium vivax is a protozoal parasite and human disease. The most common and widely disseminated cause of recurrent malaria is Plasmodium vivax, one of the six types of malaria parasites that normally infect people. Malaria is brought on by the protozoan Plasmodium vivax. As a parasite, it. Female Anopheles mosquitoes transmit it to humans.
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"Small waste molecules such as potassium, creatinine, and urea occur at a _____ concentration in the blood and at a _____ concentration in the dialysate.
Diffusion moves these waste molecules ___ the blood ____ the dialysate.
Choices:
From
Higher
To
Lower
Answers
Small waste molecules like potassium, creatinine, and urea are present in the blood in higher concentrations than they are in the dialysate.
What are molecules called?Commence with molecules. Any atoms joined by chemical bonds are referred to be molecules in general. The molecule is made up of any two atoms together. A molecule consisting of atoms from different elements is referred to as a compound. Even though all molecules are compounds, not all compounds are molecules.
What is molecules and its types?(1) The smallest particle in a chemical element or compound that possesses that element's and compound's chemical properties is called a molecule. Atoms are linked together by chemical bonds to form molecules. There are two categories of
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What is the probability of the offspring having hemophilia for the cross?; What is the best evidence to prove that Irene was heterozygous for hemophilia?; Is hemophilia recessive?
Answers
The fact that two of her sons have hemophilia and one does not would be the best proof, the probability of the offspring having hemophilia for the cross
A sex-linked recessive condition, hemophilia. This means that whereas males can either be normal or affected, females can either be homozygous normal, heterozygous, or impacted by the condition. This is due to the fact that females have two X chromosomes (XX) while males only have one (XY). Additionally, males always inherit their X chromosomes from their mothers, whereas females inherit their Y chromosomes from their fathers. Therefore, if Irene's two X chromosomes are normal for hemophilia, none of her sons should be affected. All of her boys will have the problems if both X chromosomes are defective. If just one X chromosome is affected and the other is normal, some of her kids may not.
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Which of the following describes the lac operon in E. coli when both lactose and glucose are present in the culture medium?A) CAP, but not the lac repressor, is bound to the lac operon's regulatory DNA, and the lac operon is expressed.B) CAP and the lac repressor are both bound to the lac operon's regulatory DNA, and the lac operon is not expressed.C) The lac repressor, but not CAP, is bound to the lac operon's regulatory DNA, and the lac operon is not expressed.D) Neither CAP nor the lac repressor is bound to the lac operon's regulatory DNA, and the lac operon is not expressed.
Answers
Option D:Neither CAP nor the Lac repressor is bound to the Lac operon's regulatory DNA, and the Lac operon is not expressed.
What is e. coli ?
E. coli bacteria typically dwell in the intestines of healthy humans and animals. Most E. coli strains are either innocuous or very briefly cause diarrhea. However, other strains, including E. coli O157:H7, can cause vomiting, severe stomach pains, and bloody diarrhea.
E. coli can be spread by contaminated food or drink, particularly raw vegetables and undercooked ground beef. E. coli O157:H7 infections in healthy persons often resolve within a week. A life-threatening kind of renal failure is more likely to affect young kids and older adults.
E. coli germs are very contagious, especially when children and adults who are afflicted do not properly wash their hands. Those who live with young children who have E. coli infections include likely to get it themselves.
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the histamine h1 receptor is one of several existing histamine g protein-coupled receptors. depending on many factors, including the type of receptor, histamine can trigger a variety of responses, including vasodilation, smooth muscle contraction, stimulation of gastric secretion, cardiac stimulation, and increased vascular permeability (causing runny nose and watery eyes).which of the following could account for the different cellular responses to histamine? select all that apply.
Answers
H(1)-receptors in the lung mediate histamine's bronchoconstrictive actions and increase vascular permeability, which result in plasma exudation.
The H1 receptor is stimulated by what?A member of the family of rhodopsin-like G-protein-coupled receptors, the H1 receptor is a histamine receptor. Histamine, a biogenic amine, activates this receptor.
The G-protein-coupled status of histamine receptors ?G protein-coupled receptors (GPCRs) called H1 histamine receptors promote the production of IP3 and diacylglycerol, which are second messengers (14, 15). IP3 synthesis triggers the release of Ca2+ from intracellular reserves, which starts the contraction of smooth muscle (16, 17).
By triggering H1-receptors, histamine causes the smooth muscle of the bronchioles and the gut to contract.
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Based on information provided in the tutorial, which of the following describes the type of radiation that could be absorbed and emitted by Earth?
A. Earth absorbs long-wave infrared radiation and emits short-wave visible and ultraviolet radiation.
B. Earth absorbs long-wave visible and ultraviolet radiation and emits short-wave infrared radiation.
C. Earth absorbs short-wave infrared radiation and emits long-wave visible and ultraviolet radiation.
D. Earth absorbs short-wave visible and ultraviolet radiation and emits long-wave infrared radiation.
Answers
The earth absorbs long-wave visible and ultraviolet radiation and emits short-wave infrared radiation. The ground heats up and re-emits the energy as longwave radiation in the form of infrared rays. Earth emits longwave radiation because Earth is cooler than the sun and has less energy available to give off.
Dark-colored surfaces such as gravel and asphalt absorb most of the sunlight and have low albedo values closer to 0. The greater temperatures on surfaces with darker hues are also explained by this.
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instantaneous speciation: (select all correct choices) instantaneous speciation: (select all correct choices) often involves multiple chromosome sets, or polyploidy. can occur when hybridization between species produces fertile, viable offspring that are reproductively isolated from both parental species. is relatively common in plants but not in animals. is, by definition, a type of sympatric speciation. none of these
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Instantaneous speciation, which is relatively common in plants but not in animals, frequently involves multiple chromosome sets or polyploidy; can happen when hybridization between species produces fertile, viable offspring that are reproductively isolated from both parental species; and is, by definition, a type of sympatric speciation.
A single person (or the progeny of a single mating) that is reproductively distinct from the species to which the parental stock belongs and is capable of founding a new species population is said to have undergone instantaneous speciation.
A fundamental unit of evolution is the species. Multiple populations that are connected by gene flow but that are individually modified by mutation, selection, and genetic drift make up most species. As a result, species act as a physical barrier to the spread of alleles. Although the idea of a species is straightforward in theory, establishing its boundaries is more difficult.
As a result, choices A, B, C, and D are the best ones.
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predict how the average life span of a nerve cell located in the brain differs from the average life span of a red blood cell.
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The cells of the brain, particularly the neurons of the cerebral cortex, last a lifetime. The life span of a red blood cell, however, is approximately 120 days.
Neurons (additionally referred to as neurones or nerve cells) are the fundamental units of the mind and frightened system, the cells responsible for receiving sensory enter from the outside global, for sending motor commands to our muscular tissues, and for transforming and relaying the electrical indicators at each step in between. more than that, their interactions define who we are as human beings. Having stated that, our roughly one hundred billion neurons do have interaction closely with different cell sorts, broadly labeled as glia (those may additionally honestly outnumber neurons, although it’s no longer definitely recognized).
The introduction of latest neurons inside the mind is referred to as neurogenesis, and this may happen even in adults.
RBC a sort of blood cell this is made inside the bone marrow and discovered inside the blood. purple blood cells contain a protein known as hemoglobin, which consists of oxygen from the lungs to all parts of the frame. Checking the quantity of pink blood cells within the blood is generally a part of a whole blood cellular (CBC) take a look at. it can be used to search for situations inclusive of anaemia, dehydration, malnutrition, and leukaemia. additionally known as erythrocyte and RBC
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