4 dna would be expected in a metaphase i cell of a female.
In somatic cells, there are 23 pairs of chromosomes, one from every parent (the father) and one from the mother (from the mother). One pair of intercourse chromosomes and 22 matched pairs of autosomal chromosomes are present.
There are best 23 chromosomes in every egg and sperm cell. That's best 1/2 of the variety of chromosomes observed in traditional cells. A zygote, or cell containing forty six chromosomes (23 pairs), is created whilst an egg and sperm integrate for the duration of fertilization.
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What is the transfer of gases between the bloodstream and the cells of the body called?.
Answer:
internal respiration
Explanation:
What is the most potent stimulus for a positive feedback loop that results in the release of bile by the liver?.
(c) secretin is the most potent stimulus for a positive feedback loop that results in the release of bile by the liver.
Fats are mechanically broken down in the small intestine by the emulsifier substance known as bile. In order for digestive lipases to carry out their chemical digestion of fats effectively, fats must dissolve in order to expand their surface area.
The most effective trigger for the positive feedback loop that causes the liver to secrete bile is secretin.
A hormone called secretin is created by the small intestine's enteroendocrine cells in response to the stomach's chyme. In order to create and release bile into the gallbladder, secretin activates liver hepatocytes.
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Question correction:
What is the most potent stimulus for a positive feedback loop that results in the release of bile by the liver?
a) cholecystokinin (CCK)
b) bile salt re-entry into the liver
c) secretin
d) vagus nerve
segments of dna just before the gene sequence open reading frame where rna polymerase binds to start the transcription of the gene are called
RNA polymerase binds to a portion of a gene's DNA known as the promoter to start transcription of the gene.
The promoter region is the region of DNA sequence which the RNA polymer binds to to initiate transcription. According to genomics, a gene's promoter is the area of DNA upstream of it where important proteins, such RNA polymerase and transcription factors, bind to start the gene's transcription. A molecule of RNA is created as a result of the transcription (such as mRNA).
A promoter is a person or group that aids in funding a certain financial endeavor. Promoters frequently advocate penny stocks, a market where making false claims and misrepresenting a company's or its prospects are frequent occurrences.
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why can novel variants of the sars-cov-2 s protein evade the antibody response derived from currently approved covid-19 vaccines?
The S protein is essential for invading host cells and starting an infection, in contrast to the M and E proteins, which are largely involved in virus assembly. Notably, the coronaviruses' surface protrusions are spike-shaped due to the presence of S proteins on those viruses.
What is the S protein of SARS-CoV?S1 and S2 subunits make up the class I fusion transmembrane structural glycoprotein known as the S protein from the SARS-CoV-2 [71]. It is a homotrimer, measuring 180–200 kDa [43] and having a total length of 1273–1300 amino acids [113]. A signal peptide is made up of the residues (1–13) of amino acids [43].
The COVID vaccines and their boosters continue to be our most effective weapon against all COVID-19 strains since they continue to greatly lessen the illness's severity. Are you still debating the vaccine or do you know someone who is? See these justifications for getting the shot.
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What is the structure of hydrophobic hairs or ridges on the body that allow insects to carry water in aquatic habitats?.
Using the theories of aquatic animals, we got Plastron the structure of hydrophobic hairs or ridges on the body that allow insects to carry water in aquatic habitats.
A plastron is the special array of rigid, closely-spaced hydrophobic hairs (setae) that actually create an “airspace” next to the body. Air trapped within a plastron operates as the physical gill (just like air in a bubble) but this airspace cannot shrink in the volume because the fortress of setae prevents encroachment of the surrounding water.
Hence, the structure of hydrophobic hairs or ridges on the body that allow insects to carry water in aquatic habitats is plastron.
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Which of Earth's spheres does the biosphere interact with?
A. hydrosphere
B. geosphere
C. all of the above
Answer:
c) All of the above
Explanation:
Earth's spheres in which the biosphere interacts is hydrosphere and geosphere. Hence, option (c) is correct answer.
Researchers found e. Coli that had mutation rates 100 times higher than normal. What is a possible explanation for these results?.
DNA polymerase had a malfunctioning proofreading mechanism.
How quickly do bacteria like E. coli typically replicate?Genome replication takes about 40 min to complete in E. coli, and it must be finished at least 20 min before cell division. Bacteria perform numerous replication rounds at once to reach such rapid growth rates. Therefore, when the division time is as brief as 20 minutes, E.
What would occur if a mutation prohibited a cell from producing DNA ligase?The separate strands of the replicated DNA and the freshly synthesized DNA would not be joined if the DNA ligase enzyme molecule is altered and becomes non-functional. As a result, at the conclusion of the replication mechanism.
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how do cells use energy? a) atp hydrolysis b) biosynthesis of more complex molecules c) active transport d) muscle contraction
Cells use energy by biosynthesis of more complex molecules, active transport and muscle contraction.
Cells do now no longer use the power from oxidation reactions as quickly as it's far released. Instead, they convert it into small, power-wealthy molecules consisting of ATP and nicotinamide adenine dinucleotide (NADH), which may be used at some point of the mobile to strength metabolism and assemble new cell components.
Together, all the chemical reactions that take region internal cells, along with those who devour or generate power, are called the mobile's metabolism. A residing mobile can't save giant quantities of unfastened power.
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The purpose of dna is to store information to make _______ which determine our traits.
The purpose of DNA is to store information to make genes which determine our traits
In addition to having its own DNA,
chloroplasts also have their own...
A ribosomes
B. mitochondria
C. phosphorus
In addition to having its own DNA, chloroplasts also have their own...ribosomes
What is ribosome?
All cells include ribosomes, which are large molecules responsible for the synthesis of biological proteins. To create polypeptide chains, ribosomes combine amino acids in the order dictated by the messenger RNA molecules' codons. The short and big ribosomal subunits are the two main parts of ribosomes.
A ribosome is a ribonucleo protein complex because it is constructed from complexes of RNA and proteins. Subunits are the little (30S) and large (50S) parts of a ribosome that are connected to one another:
While 50S primarily performs catalysis and is also coupled to aminoacylated tRNAs, 30S mostly performs decoding and is also bound to mRNA.
Because mitochondria and plastids, like chloroplasts, have their own DNA and ribosomes, they can replicate without the help of the nucleus and synthesise some of their own proteins.
Hence the correct answer is A; ribosome.
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The animal phyla can be divided into three separate clades based on which characteristic?.
Answer:radially symmetrical, bilaterally symmetrical, and asymmetrical.
Explanation:At a very basic level of classification, true animals can be largely divided into three groups based on the type of symmetry of their body plan: radially symmetrical, bilaterally symmetrical, and asymmetrical. Asymmetry is seen in two modern clades, the Parazoa (Figurea) and Placozoa.
the portions of a neuron that extend off of the roughly spherical cell body are usually collectively called
The portions of a neuron that extend off of the roughly spherical cell body are usually collectively called processes.
The number of processes that extend beyond the cell body is the basis for the structural classification of neurons. This classification creates three significant groups: neurons that are unipolar, bipolar, and multipolar.
There is only one process from the cell body in unipolar neurons. On the other hand, that one, extremely brief process, breaks up into two, longer processes—a dendrite and an axon. Sensory neurons that transmit impulses to the brain and spinal cord are known as unipolar neurons. There are two processes in bipolar neurons, one on each axon and the dendrite.
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Bacteria with the ability to break down certain types of plastic are placed with a colony of E. coli bacteria that lack this ability. Plasmid transfer occurs between the two colonies of bacteria and some of the E. coli gain the ability to break down plastic as well. What inference can be drawn about the nature of plasmids from this observation?
A.
Plasmids are lipids which provide energy for the cell.
B.
Plasmids are proteins which build tissues.
C.
Plasmids are nucleic acids which can pass on traits.
D.
Plasmids are carbohydrates which provide structural support.
Ted was the scoring seven tables for the Fall Festival by placing the same number of paper skeletons and bats on each table all together he used 84 skeletons and he and 84 bats how many paper shapes went on each table
sodium, chloride, and potassium in cells and body fluids are examples of: question 54 options: phytates. electrolytes. condensates. solvents
(b) electrolytes are what sodium, chloride, and potassium in cells and body fluids are examples of.
When dissolved in water or bodily fluids, a substance called an electrolyte separates into ions (particles having electrical charges). The ions sodium, potassium, calcium, chloride, and phosphate are only a few examples.
The many electrolytes include sodium, calcium, potassium, chloride, phosphate, and magnesium. They come from the meals you consume and the liquids you drink.
Your body's electrolyte levels might get too high or too low. When your body's water balance changes, this may occur. The amount of water you consume and lose should be equal. If something throws off this equilibrium, you can be dehydrated or have too much water on your body (overhydration).
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Question correction:
Sodium, chloride, and potassium in cells and body fluids are examples of:
a. phytates.
b. electrolytes.
c. condensates.
d. solvents.
Arthur is 4 years old and can clearly indicate that two containers of the same size, filled to the same level, hold the same amount of liquid. However, when the liquid from one of the containers is poured into another that is skinnier and taller, arthur indicates that this new container now holds more liquid than the other. What principle has he failed to understand?.
Arthur illustrates that this new container now holds more liquid than the other when the liquid from one of the containers is put into another that is skinnier and taller. He was unable to grasp conservation.
Which of these best describes the "systems level" measure?Cross-sectional research studies compile data from a large number of participants who are the same age and compare them to participants who are at a different age and, consequently, at a different stage of development.
This requires preserving the planet's natural resources so that they will be accessible to next generations, for instance through preventing habitat destruction and overexploitation. By keeping organisms from going extinct or dying out, conservation increases the richness of ecosystems. So, for the right reasons, researchers are concerned about conservation.
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question is in the picture
Answer: c.
Explanation:
Which of the following is an accurate description of Batesian mimicry in gorongosa national park
The option that is an accurate description of Batesian mimicry in Gorongosa national park is: "some moths mimic the sound made by other moths to avoid being preyed on by bats" (Option D).
What is Batesian mimicry?Batesian mimicry is a process in which members of palatable species or groups of palatable species receive safety from predation by imitating or replicating the defensive signals of an unpleasant or guarded species or group of defended species.
Batesian mimicry is a type of mimicry in which a harmless species has evolved to replicate a hazardous species' warning signs geared towards a predator of both of them. It is named after the English scientist Henry Walter Bates, who studied butterflies in the Brazilian jungles.
In Batesian mimicry, the mimic gains at the expense of the model (see adaptive value). The mimic is always the organism in Mullerian mimicry, and the model is the universal signal among the mimic species that honestly signals inedibility.
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The accretion of crustal fragments such as inactive volcanic arcs and microcontinents to the edge of a continent is generally associated with.
The procedure for accretion entails adding substance (usually gaseous substance) to a because of a tectonic plate or a continent gravity. The majority of astronomical objects.
The formation of objects like galaxies, stars, and planetsby the processes of accretion.The next statement can be drawn from the available possibilities.true regarding the accretion process:A.lt enlarges and produces continental landmasses.continents' borders are bordered by mountain It makes mountains along the boundaries of continents and enlarges continental landmasses.Due to the influence of gravitational force acting on these entities, the accretion process is a process in which little objects, matter, or particles get collected to form a massive entity, landmass.Galaxies, stars, planets, and mountains are examples of accretion processes.Mountains develop along the borders of continents as a result of debris buildup and sediment discharge; this process is known as accretion.
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what are the three types of rna required in transcription and translation and what role does each type of rna play in these two processes?
tRNA, mRNA, and rRNA are the three different kinds of RNA. The cytoplasm, where proteins are created, and the nucleus, where DNA is housed, are connected by mRNA.
Protein synthesis involves tRNA and rRNA. Gene regulation and mRNA degradation also require other RNAs.
Genetic data is transported from DNA to ribosomes through mRNA. Proteins and rRNA combine to create ribosomes. Amino acids are added to a developing organism by ribosomes after being transferred to them by tRNA.
The amino acid is transported to the rRNA by the tRNA (transport RNA). The ribosome is made up of rRNA (ribosomal RNA). The amino acids are brought in by the tRNA, and the ribosome assembles the protein in accordance with the instructions contained in the mRNA.
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the o2-dissociation curve of myoglobin is left-shifted relative to that of hemoglobin. why does this position make sense, given the function of myoglobin?
The more tightly hemoglobin binds oxygen, the more the curve is moved to the left. A decreased affinity for oxygen exists in hemoglobin, which causes the curve to be pushed to the right.
The iron atoms in the four heme groups and oxygen molecules have four binding sites on the hemoglobin molecule. Four oxygen molecules can thus be bound by each Hb tetramer. One can determine that 1 g of Hb can mix with 1.39 ml of oxygen based on the molecular weight of Hb.
Four globin chains make up hemoglobin, and each one has a haem molecule that attaches to oxygen in an irreversible manner. By causing structural changes in the nearby globin chains, the binding of oxygen to hemoglobin modifies oxygen affinity.
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What is a glycoprotein? where are they found in human cells? list some of their functions.
On the lipid bilayer of cell membranes, glycoproteins can be seen.
What are glycoproteins and what do they do?Glycoproteins are a class of molecules made up of protein and carbohydrate chains that play a key role in a variety of physiological processes, including immunology. Many viruses feature glycoproteins that not only aid in their ability to infiltrate body cells but can also act as crucial targets for treatment or prevention.
What exactly are glycoproteins and where do they appear in human cells?On the lipid bilayer of cell membranes, glycoproteins can be seen. Due to their hydrophilic character, they can operate in aquatic environments, where they play a role in molecule binding and cell-cell recognition.
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describe an anthropogenic occurrence that could require re-establishing a forest in an area with previously established soil.
Agriculture, inappropriate forest management, mining, infrastructure projects, and an increase in the frequency and intensity of fires are the main drivers that lead to deforestation and severe forest degradation.
Goods like timber, food, fuel, and bioproducts are among the advantages offered by forest ecosystems. ecological processes such the storage of carbon, cycling of nutrients, purification of water and air, and preservation of wildlife habitat. recreation, the use of traditional resources, and other social and cultural advantages.The act of adding or planting trees in a location that has never had a forest or plantation is known as afforestation. This is a way to plant a forest from scratch. The act of replanting trees in an area where a forest once existed but was destroyed or damaged is known as reforestation.
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What is Papiloma humano?
Hello..!
¿What is Papiloma humano?
It is a sexually transmitted disease, in some cases there are people infected by the virus but it disappears on its own, in others they are low risk and can make or cause warts in different parts of the body.
They can get worse and turn into cancer.
We can mention:
Cervical cancerSome types of mouth and throat cancerAnswer:
HPV
Explanation:
Human papillomavirus (HPV) is the most common sexually transmitted infection (STI).
Many people with HPV don't develop any symptoms but can still infect others through sexual contact
A cell undergoing meiosis experiences a problem with its microtubules, such that proper separation of the paired chromosomes carrying alleles q and q does not occur during anaphase i. What is the most likely effect on the four daughter cells?.
All four daughter cells have a complete set of chromosomes, but two daughter cells have an extra chromosome containing the Q or q allele while the other two daughter cells lack the gene containing Q or q allele.
What are microtubules?Microtubules are polymers of tubulin that form part of the cytoskeleton and provide structure and shape to eukaryotic cells. Microtubules are up to 50 microns long, 23–27 nm wide, and 11–15 nm internal diameter.
Microtubules are important for the development and maintenance of axons and dendrites. Microtubules are vulnerable in various neurodegenerative diseases. Dysfunctional microtubules are at the reason of neurodegeneration and injury. Microtubules go through complex modifications and protein-protein interactions.
Microtubules are involved in a variety of functions, including mitotic spindle assembly in dividing cells and axonal elongation in neurons.
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Which of the qualities is a major difference between all spore-dispersing and seed-dispersing plants? select all that apply.
The gametophytes of seed plants are never exposed to the external environment. In seed plants, dispersed spores contain a multicellular gametophyte.
Seed dispersal is the mechanism by which plant seeds are transported to new sites for germination and the establishment of new individuals.
The process by which plant seeds are moved to new locations for germination and the development of new individuals is known as seed dispersal. Animals frequently act as intermediaries in this process, and as a result, the success of their role as seed dispersers determines the fate of the seeds.
Dispersal is the process through which seeds are dispersed by animals or other sources over a large region. Germination is the process of a new plant growing from a seed in ideal conditions.
several methods of seed dispersion: -
Due to gravity, the seed falls to the earth; Seed distribution by wildlife and animals; Fur and feather adaptations for hitchhiking, including hooks, barbs, and spines; Ballistic seed dispersal, which causes seeds to explode and release their seeds; Seed distribution by wind; Human seed dispersion through farming, gardening, and leisure activities, dispersers.To learn more about seed-dispersing visit here:
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Complete Question;
Which of the qualities is a major difference between all spore-dispersing and seed-dispersing plants? select all that apply.
In seed plants, dispersed spores contain a multicellular gametophyte.Seed plants disperse gametes and seeds instead of spores.The sporophyte of seed plants is photosynthetically independent.The gametophytes of seed plants are never exposed to the external environment.Compare the krebs cycle and the calvin cycle. Which molecules are common to both cycles?.
Krebs cycle and the Calvin cycle Both the processes are involve in the utilization of CO2 and ATP.
Calvin cycle is the part of light-independent reactions of photosynthesis. Calvin cycle uses ATP and NADPH. on the other hand Krebs cycle is part of cellular respiration. This cycle makes ATP and NAPH.
In TCA, the final products are carbon dioxide and water, whereas in Calvin cycle the carbon dioxide is the initial substrate. Similarities of Calvin cycle and citric acid cycle are both linked to glycolysis and fatty acid metabolism.
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Chemical reactions that absorb energy
A. often occur spontaneously.
B. will not occur without a source of energy.
C. always require catalysts.
D. are often explosive.
Which two terms relate to asexual reproduction but not sexual reproduction?
A. Meiosis
B. Identical nuclei
C. Mitosis
D. Fused cells
Answer:
Meiosis Mitosis is that thanks for
Asexual and sexual creatures both go through the mitotic process. It takes place in the body's somatic cells, which are responsible for producing cells involved in growth and repair. For asexual reproduction, regeneration, and growth, mitosis is necessary. Thus option B ,C is correct.
What relates asexual reproduction, not sexual reproduction?Asexual reproduction and sexual reproduction are the two main types. An organism that reproduces sexually incorporates the genetic material from both of its parents and is genetically distinct. Asexual reproduction creates genetically identical kids by having one parent replicate itself.
The primary likeness between sexual and asexual reproduction is that both involve the creation of offspring into which genetic information is passed on.
With asexual reproduction, a single parent gives birth to identical children. The combining of the sex cells from two parents during sexual reproduction results in variation in the progeny.
Therefore, Identical nuclei and Mitosis terms relate to asexual reproduction but not sexual reproduction.
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According to the lecture, contemporary trait approaches to personality rest on _____, whereas humanistic or psychoanalytic approaches to personality rest on _____.
According to the lecture, contemporary trait approaches to personality rest on assessment, whereas humanistic or psychoanalytic approaches to personality rest on interaction.
What is a Trait theory about?Trait theory is a model for personality explanation and research. The modern trait approaches confront some problems like constructing objective personality traits assessment, connecting the descriptive traits with explanatory processes, applying traits for understanding the individual person etc. This contemporary trait theories however attempt to provide possible solutions to these issues that need to be resolved by future research and theorizing.
What is the psychoanalytic approaches to personality?The Psychoanalytic theory emphasizes human is constantly changing through perpetual interactions and that human personality can be conceived of as a locus of change with fragile and indefinite boundaries.
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what is the infectious stage of tania solium if the human is an intermediate host? eggs or free-swimming cercariae of trophozoites of cysticercus bovis
In some bodily organs, eggs of the T. solium hatch into larvae known as cysticerci. They can produce neurological symptoms (neurocysticercosis), including epileptic seizures, when they invade the central nervous system.
Cysticercus, the larvae stage of the pig tapeworm Taenia solium, infects an intermediate host, resulting in the illness known as cysticercosis.The typical intermediate host for T is a pig.
What is larvae?
The stage of an insect's existence after it has emerged from an egg and before it transforms into its adult form is known as the larval stage. Larvae immediately emerge from the eggs.
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