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Q1. For a cell to make proteins enzymes should access its genes as his tones are modified with acetyl groups, their positive charges are neutralized so they wrap DNA less tightly. how may this affect the rate of protein synthesis?
Q2. A recessive mutant allele, black, causes a very dark body in Drosophila while homozygous. The normal wild-type color is gray.
a. A black female is crossed to a heterozygous gray male. What are the parental genotypes?
b. What F1 phenotypic and genotypic ratios are formed from this cross? (Show your Punnett Square)
Determine which of the following correctly describes how myelination alters the passive properties of the neuronal membrane?
the process of natural selection as defined by Darwin. How did Darwin's theories differ from his predecessors?
Pretend that our class conducted a lab on the population genetics of squirrels in Utah. The class was split into three group and sent to different areas of the state to collect DNA samples.
For both visual and blind predators, estimate what p will be by the 20th generation. If p > 1, then at what generation was one reached?
If a man with blood type B, one of whose parents had blood type O, marries a woman with blood type AB, what will be the theoretical percentage of their children with blood type B?
Suppose that the Temperature is 37C and the Membrane Potential is -60mV, with the interior negative with respect to the exterior of the cell.
A wild-type polypeptideconsists of 27 amino acids. Many mutants have been discovered that produce versions of this polypeptide that are longer than normal.These mutations are each due to a substitution of a singlebase.
How does infection, or inflammation stimulate the stress response?
Children with the genetic disease phenylketonuria must consume a low-phenylalanine diet to prevent the accumulation of damaging phenylketones. Why not just eliminate the essential amino acid phenylalanine from the diet altogether.
express What is the general structure of enzyme proteins
If you were to remove the ER retrieval signal (KDEL) from protein disulfide isomerase (PDI), which is normally a soluble resident of the ER lumen, where would you expect the modified PDI to be located? Why?
Electrocardiogram results demonstrate a shortened QT interval and an rise in the P-R interval. Laboratory results indicate that his serum potassium level has increased to a value of 6.5 mEq/L.
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