These cells are different because they use the same set of genes differently. So even though each of our cells has the same 20,000 or so genes, each cell can select which ones it wants to “turn on” and which ones it wants to keep “turned off”
Portions of eukaryotic mrna sequence that are removed during rna processing are ________.
Portions of eukaryotic mrna sequence that are removed during rna processing are INTRONS.
This section is referred to as INTRON. A split gene’s intron is a section of the pre-RNA transcript that is typically deleted for destruction during RNA processing. A non-coding, intervening section of the primary transcript known as an intron is not required for genetic coding.A genetic problem can be corrected and an organism’s physical and chemical conditions can be improved through the high-tech method of genome editing, which allows scientists to replace, add, and delete DNA sequences in living things including bacteria, animals, plants, and others.The process of transcription can be described as the rewriting of information from a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) using the enzyme RNA polymerase.Following the transcription of an RNA (ribonucleic acid) molecule from a eukaryotic gene, intron-containing regions are excised, and the exons that remain are spliced together to create an mRNA molecule with a continuous coding sequence.
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based on hemispheric lateralization, which side of the brain is predominantly responsible for analyzing sensory information?
Based on hemispheric lateralization, right side of the brain is predominantly responsible for analyzing sensory information.
The parietal lobe is separated from the occipital lobe with the aid of using the parieto-occipital sulcus and is at the back of the vital sulcus. It is liable for processing sensory facts and incorporates the somatosensory cortex.
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Coactivation is a phenomenon in which contraction of an agonist muscle leads to _______ in the antagonist muscle.
It occurs when the agonist muscle contracts while the antagonist muscle relaxes.
What exactly is coactivation a phenomenon?When the agonist and antagonist muscles (also known as synergist muscles) around a joint contract at the same time to maintain joint stability, this is known as muscular coactivation. Since two muscle groups are contracting at once, it is sometimes referred to as muscle cotraction.
Exactly why is coactivation required?According to our findings, coactivation of the antagonist is essential for the ligaments to maintain joint stability, balance the pressure distribution across the articular surface, and control the mechanical impedance of the joint.
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what is the name for a nematic phase with helical twist? what is the name for a nematic phase with helical twist? helicoid cholesteric imine mbba
Helicoid cholesteric is the name for a nematic phase with helical twist.
The nematic phase is characterized by the correlation of long molecular axes due to the one-dimensional orientation order of the molecules, but the orientation order is not polar. There is no translation order within the nematic phase.
Helicoid cholesteric phases are similar to nematic phases in that they exhibit long-range orientational order at the positions of the molecular centers of mass and no long-range order.
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Which variable should be changed in an experiment to test the best conditions for bacteria to grow? the type of bacteria used the length of time that the bacteria are left alone the size of the original colony of bacteria the material that the bacteria feed upon
An experiment to test the best conditions for bacteria to grow is the material that the bacteria feed upon. Option D.
Antibacterial hand soap with different concentrations. Dependent variable bacterial growth as measured by the diameter of the zone of inhibition. Exposing Petri dishes to different temperatures can skew the level of bacterial growth they inhabit. Plant height is the dependent variable that responds to changes in the independent variable.
Sunlight is the controlling variable because each plant is exposed to the same amount of sunlight. It is the dependent variable because it measures the amount of plant growth. The dependent variable depends on the independent variable. How much plants grow depends on how much sun they receive. A continuous increase in temperature from a minimum value increases the rate of bacterial growth because the rate of metabolic reactions increases with increasing temperature.
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Which situation best illustrates the role of businesses in the circular flow of goods?.
The situation which best illustrates the role of businesses in the circular flow of goods is by a company designs a new line of laptops.
What is company?
A group of people can come together to legally form a corporation to do business and run a commercial or industrial venture. Depending on its jurisdiction's corporate legislation, a corporation may be set up in a variety of ways for tax and financial liability reasons.
Therefore, The situation which best illustrates the role of businesses in the circular flow of goods is by a company designs a new line of laptops.
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parental gametes always contain the dominant alyou are a cat breeder who suspects that the genes controlling paw color and fur length are linked, with white paws and short fur being dominant. to test this, you have developed a pure-breeding line of white pawed, short fur cats, and another pure-breeding line of dark pawed, long fur cats. what cross should you do to test whether the genes are linked?eles for linked genes. true false
To test for linkage in the paw color and fur length genes of the cat, the two pure-breeding lines must be crossed with each other to produce the F1 generation. And then test cross must be performed with the F1 progeny to know about the genetic information.
Linkage is the phenomenon that describes the distance between two genes in a chromosome. If the distance between two genes is less than 50 centimorgan the genes are said to be linked and they inherit together, otherwise if the distance is equal to or more than 50 centimorgan they are not linked.
Test cross is the type of cross where the genotype of an individual can be detected by making it cross with a homozygous recessive individual.
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what traits do modern humans have? group of answer choices a high vertical forehead, a round and tall skull, and small browridges a large face, small teeth, and the lack of a projecting chin thicker postcranial bones than archaic homo sapiens large browridges, large nasal sinuses, and a large masticatory complex
The answer is a high vertical forehead, a round and tall skull, and small brow ridges.
What is a modern human?
Homo sapiens that are physically compatible with the variety of phenotypes observed in modern humans are referred to as early modern humans or anatomically modern humans to separate them from extinct archaic human species. Modern people are typically distinguished from older humans in terms of anatomy by having lighter-built skeletons.
Many of the physical and behavioural traits that modern humans have evolved share some similarities with other early human species, though not to the same extent.
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The roosevelt corollary was theodore roosevelt’s addition to the monroe doctrine; it stated that.
The corollary asserted that not only were the countries of the Western Hemisphere closed to colonization by European powers, but that the United States had a duty to maintain law and order and safeguard people's lives and property there.
What did this quiz on the Roosevelt Corollary to the Monroe Doctrine serve to accomplish?The Roosevelt Corollary was a significant addition to the Monroe Doctrine since it communicated with countries in Europe and Latin America. It said that the United States would not put up with European meddling in the region and that it would police the area to keep things peaceful.
What was the Monroe Doctrine and how did the Roosevelt Corollary build upon it?In contrast to the Monroe Doctrine, which said that European nations should avoid Latin America, the Roosevelt Corollary went a step further and stated that the United States had the authority to use military action against those nations to prevent European nations from entering.
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microorganisms that are members of the normal microbiota are also known to cause disease. microorganisms that are members of the normal microbiota are also known to cause disease. true false
It is true that microorganisms that are members of the normal microbiota are also known to cause disease.
Microbiota is commonly described as the assemblage of dwelling microorganisms found in a described environment [25]. As phages, viruses, plasmids, prions, viroids, and unfastened DNA are commonly now no longer taken into consideration as dwelling microorganisms [55], they do now no longer belong to the microbiota.
A most important feature of the microbiota is to guard the gut in opposition to colonization via way of means of exogenous pathogens and doubtlessly dangerous indigenous microorganisms thru numerous mechanisms, which consist of direct opposition for confined vitamins and the modulation of host immune responses.
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choose the answer that places the following events of protein synthesis in the proper order.
1. mRNA is produced in the nucleus.
2. Ribosome moves along the mRNA.
3. DNA uncoils for transcription.
4. Polypeptide is produced.
5. tRNA brings amino acids to the ribosome.
6. mRNA moves to the ribosome.
A) 3,5,1,6,2,4
B) 3,1,6,2,5,4
C) 2,1,5,4,3,6
D) 2,4,6,1,3,5
A) 3,5,1,6,2,4 is the correct order for the events of protein synthesis.
What is protein synthesis?Protein synthesis (translation) is the process of creating a polymer of an amino acid chain that results in the production of a functional protein. It entails reading information from mRNA (messenger RNA) and assembling an amino acid chain. Ribosomes are the structures responsible for protein chain synthesis.
Protein synthesis is an important process because we rely on our bodies to build the proteins we require to perform important functions. Without protein synthesis, our bodies will be unable to produce hormones, enzymes, and even new muscle.
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the age of viability is the time when the fetus: group of answer choices might survive outside the uterus has developed all of its major organs begins to move will be born without defects
Age of viability refers to the age between 22 and 26 weeks at which a fetus can survive in the event of a premature birth.
What is age of viability?
Fetal viability is the ability of a human fetus to survive outside uterus
Medical viability is considered to be between 23 and 24 weeks gestational ageViability depends upon factors such as birth weight, gestational age, and availability of advanced medical care.Gestational age is major determining factor in whether a baby will be viable, since the longer a fetus spends in the womb, more fully developed it is when it enters the world.learn more about fetal viability at ... - Brainly.com https://brainly.com/question/28177967
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Brain waves that are lowest in frequency and highest in amplitude are called _____________ waves.
The brain waves that exhibit the lowest frequency, as well as highest amplitude, are called Theta waves.
In an electroencephalogram (EEG) recording, a wave represents any kind of brain activity that is registered in the form of a wave. These waves are of distinct kinds. Theta waves exhibit a frequency of four to seven waves per second. These types of waves with the lowest frequency depict slow activity in the brain but also have the strongest signal due to the highest amplitude.
The other brain waves include Alpha waves, Beta waves, etc. The Alpha waves have a frequency of about 8 to 13 waves per second.
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During the end reaction of the electron transport chain, oxygen becomes ________.
During the end reaction of the electron transport chain, oxygen becomes water.
What is the electron transport chain?The electron trаnsport chаin is а series of proteins аnd orgаnic molecules found in the inner membrаne of the mitochondriа. Electrons аre pаssed from one member of the trаnsport chаin to аnother in а series of redox reаctions. Energy releаsed in these reаctions is cаptured аs а proton grаdient, which is then used to mаke АTP in а process cаlled chemiosmosis. Together, the electron trаnsport chаin аnd chemiosmosis mаke up oxidаtive phosphorylаtion.
Аt the end of the electron trаnsport chаin, electrons аre trаnsferred to moleculаr oxygen, which splits in hаlf аnd tаkes up [tex]H^{+}[/tex] to form wаter.
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help me asp please thank you
Answer:
girls often going to puberty fastertha boys?earths population continues to grow daily. which of the following statements best illustrates a possible consequence of such rapid growth?
The statement that describes that Earth's population is growing daily and it's possible consequence is that people will begin using fossil fuels less.
Population is outlined as all nationals gift in, or quickly absent from a rustic, and aliens for good settled in a very country. This indicator shows the quantity of individuals that sometimes sleep in a region. Growth rates are the annual changes in population ensuing from births, deaths and internet migration throughout the year.
Fossil fuels are made up of moldering plants and animals. These fuels are found within the Earth's crust and contain carbon and chemical element, which might be burned for energy. Coal, oil, and fossil fuel are samples of fossil fuels.
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Earths population continues to grow daily. which of the following statements best illustrates a possible consequence of such rapid growth?
More oxygen will be available in the atmosphere.
Competition for natural resources will increase.
More land will be available for human habitation.
People will begin using fossil fuels less.
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when small mutations gradually change the surface antigens of a virus so that antibodies to the original virus become less effective, this is known as
The phenomenon for which small mutations gradually change the surface antigens of a virus so that antibodies to the original virus become fewer effective is known as antigenic drift.
What is the antigenic drift phenomenon?The antigenic drift phenomenon is a process in which a virus loss its infection potential due to mutations that hamper the ability of binding of this infectious agent.
Therefore, with this data, we can see that the antigenic drift phenomenon is able to drastically reduce the ability of a virus to infect suitable host such as a human host in the case of some retroviruses.
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In one paragraph, explain why caucasians are more lactose persistent (tolerant) than the rest of the group of people in the world.
Answer:
Caucasians are more lactose persistent because they come from a long line of people who have been able to adapt to the lactose in milk. They have a mutation in their DNA that allows them to break down the lactose into glucose and galactose, which are then used for energy by the body.
vitamin a deficiency causes the epithelial cells of the skin to change shape and to secrete what protein
Vitamin A deficiency causes the epithelial cells of the skin to change shape and to secrete.
What is epithelial cells?The skin, blood arteries, urinary system, and organ surfaces of your body are all sources of epithelial cells. They defend your body from viruses by acting as a barrier between the inside and outside of it.
It's usual to find a few epithelial cells in your urine. Infection, kidney disease, or any serious medical condition may be indicated by a high number. In order to examine our urine under a microscope, your doctor may prescribe a urine test or urinalysis.
In terms of size, shape, and appearance, epithelial cells vary. These epithelial cells are the most crucial. A renal problem may be indicated by an elevated number. Another name for them is renal cells.
Therefore, Vitamin A deficiency causes the epithelial cells of the skin to change shape and to secrete.
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What is homeostasis?
State the direction that dna is replicated in, describing the impact of this directionality.
The direction of DNA replication is 5' to 3'. The DNA polymerase, which can only create DNA in one way, is hampered by this.
What three distinctions exist between the leading and lagging strands?A leading strand is one that is created in the direction of 5'-3', whereas a lagging strand is one that is created in the direction of 3'-5'. 2. The lagging strand is formed in fragments known as Okazaki fragments, while the leading strand is produced constantly.
Which strand is moving in the leading and lagging directions?The lagging strand is the one that starts to open in the 3' to 5' direction toward the replication fork. The leading strand in the replication fork is the one that travels in the 5' to 3' direction. Discontinuous replication occurs for the strand. Continuous replication of the strand occurs.
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How have freshwater and saltwater fish adapted to deal with osmosis in their respective environments? (site 1).
Answer:Water for Replacement
Explanation:
Salt water fish are perfectly adapted to their salty environment and need osmosis to live. The replacement fluid taken on to replace the lost water is desalinated by a process known as diffusion. Diffusion allows fish to live in a state of constant osmosis.
what is the main piece of evidence that shows the moon and Earth used to be connected
Answer: Moon Rocks
Explanation if needed :) - most compelling evidence is the 382 kilograms of Moon rocks brought back to Earth by the Apollo missions.
Can you explain why int he end the burning paper lifted off?
Answer:
Combustion.
Explanation:
For example, when paper is burned oxygen from the air combines with carbon and hydrogen in the paper turning some of it into carbon dioxide and water vapor, which waft away with carbon particulates in the smoke.
Which two properties of glucokinase explain why it is an ideal glucose sensor capable of stimulating insulin release from the pancreas?.
Two properties of glucokinase are its functions as the beta cell's glucose sensor by controlling the rate of glucose entry into the glycolytic pathway and subsequent metabolism.
It is well capable of insulin stimulation release from the pancreas. Particularly in the postprandial phase, glucose kinase is crucial for the liver's ability to store glucose as glycogen. High glucokinase activity is essential for postprandial glucose phosphorylation, metabolic signal synthesis in glucose-induced insulin secretion in beta cells, and the storage of glucose as glycogen in the liver.
Glucokinase is referred to as the "glucose sensor of the beta-cell" due to its strict control over the release of insulin. As a result, early in the disease, hyperinsulinemia may be brought on by excessive glycolysis, which can be reduced to restore the normal stimulus-secretion coupling.
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acute tubular necrosis (atn) is the most common cause of intrinsic renal failure. what are the most common causes of ischemic atn? select all that apply.
ATN is frequently caused by a lack of oxygen and blood to the renal tissues. It might also occur if a harmful substance destroys the renal cells.
What sets the kidney apart from the renal?While renal is an adjective, kidney is a noun. The two terms don't form a tautology. The word renal has a Latin root (ren). The words meaning kidneys in Spanish, Italian, & French are extremely similar to the English "renal" (rein).
What are renal problems?Rarely do kidneys lose their capacity to filter and clean blood. This could lead to the buildup of hazardous waste levels. This is renal failure (or kidney failure). If untreated, this may be fatal.
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A characteristic of hormones and enzymes that allows them to work effectively with other organic molecules is their.
Their specific shape is the characteristic of hormones and enzymes that allows them to work effectively with other organic molecules.
What are hormones and enzymes?
Enzymes:
Enzymes are catalysts for reactions that occur. They speed up the rate of reactions without undergoing any changes themselves.Most enzymes are proteins. Enzymes retain their chemical makeup even after use, which is why they can be reused.External factors such as temperature, pH levels, etc affect the regulation of enzymes acutely. Enzymes are produced by Exocrine glands. ( salivary glands, gastric glands)Examples are protease, amylase, and lipase, etc.Hormones:
Hormones are messengers that trigger many functions in our body. Hormones can be proteins, amino acids and even steroids. The chemical composition of hormones changes after use, hence they may or may not be reused.Hormones are not affected by external factors as acutely as enzymes.Hormones are produced by Endocrine glands. ( thyroid and pituitary glands)Examples are Melatonin, Insulin etc.Therefore, their specific shape is the characteristic of hormones and enzymes that allows them to work effectively with other organic molecules.
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how are synthetic products made from petroleum different from synthetic products made from plants and animals
A synthetic substance is one that has been created through a chemical reaction that took place in a lab or factory using a natural material.
Can plants be used to create synthetic goods?All kinds of natural resources can be chemically altered or modified by humans to create synthetic items. Plants and animals, as well as metals, minerals, and other naturally occurring resources on Earth, can be used to create synthetic items.
What distinguishes Class 8 natural and synthetic fibers?Natural fibers are those that are produced utilizing only organic raw materials, including plants and animals. The fibers produced through chemical synthesis are known as synthetic fibers.
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he division of a bacterial cell occurs as the: multiple choice chromosomes are pulled toward the ends of the cell. cell wall develops cracks around the equator of the cell. actin and microtubules constrict the cytoplasm. new membrane and cell wall materials begin to grow and form a septum.
The division of a bacterial cell occurs as the chromosomes are pulled toward the ends of the cell (option A).
What is cell division?Cell division is the process by which a cell divides into two cells. All living organisms are capable of undergoing cell division.
Bacteria grow and reproduce by the process of binary fission. A bacterial cell begins to divide when the number of its cellular components reaches a critical mass.
The DNA must first be replicated and then allocated into the daughter cells. The cytoplasmic contents must also be divided to give both new cells the machinery to sustain life.
In bacterial cells specifically, the genome consists of a single, circular DNA chromosome; therefore, the process of cell division is simplified. The circular double-stranded DNA molecule makes up the bacterial chromosome, which then segregates into the opposite sides of the cell.
Therefore, it can be said that the pulling of chromosomes towards the end of the cell begins the process of cell division in bacteria.
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the change in allele frequency within a population is...? question 19 options: a) genetic drift b) natural selection c) emigration d) macroevolution e) microevolution
The change in allele frequency within a population is called genetic drift.
What is an allele?
A variant of the same nucleotide sequence at the same location on a lengthy DNA molecule is known as an allele. Multiple alleles are often present at each locus within a population or species of organisms.
When a population's allele frequencies shift across generations owing to chance, it is called "genetic drift" (sampling error).All populations of limited size experience genetic drift, but its effects are most pronounced in small groups.
Genetic drift can lead to the fixation, or increase in frequency, of some alleles (even advantageous ones), as well as the loss of other alleles. When a population is drastically reduced in size by a natural disaster (the bottleneck effect) or when a small group breaks off from the main population to establish a colony, genetic drift can have significant impacts (founder effect).
Instead of taking into account an allele's advantage (or harm) to the person carrying it, genetic drift, unlike natural selection, does not take this into account. To put it another way, an advantageous gene could disappear by accident while a marginally deleterious allele could stabilize.
A benefit or detrimental allele would be subject to selection in addition to drift, but significant drift (for instance, in a very small population) might still result in the fixation of a harmful allele or the loss of a good one.
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