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Fully answer the two questions below. Please use evidence to support your answers; and cite all sources used in your answers.
(1) What are the advantages of using mitochondrial DNA and Y-chromosome DNA to trace human ancestries? How do molecular genetics complement or dispute the fossil (morphological) evidence of human evolution? Please explain your answer and provide specific examples.
(2) Do Neanderthals represent a direct ancestor to modern humans? What does the recent genetic evidence indicate about the role of Neanderthal as human ancestor?
A mutation in acetyl-CoA carboxylase replaces the Serine that is usually phosphorylated by AMPK to an Alanine. What affect does this have on fat metabolism? If Serine were replaced by Asp. how would fat metabolism be affected then?
Select a prison special offender population and research a program aimed to assist or care for that population. What are the characteristics of the program? How has the program affected the special offender population in that prison?
Suppose that the following enzymatic pathway is used to synthesize amino acid histidine in Neurospora enzyme A enzyme B enzyme C expect to produce a colony on a minimal medium without any of these three substances
Enzymes are typically required to catalyze reactions that would be very unlikely to occur on their own. Suppose that the activation energy, Ea, for the uncatalyzed cheese reaction at 20C is 18kcal/mol.
What is the rate of errors in DNA replication in a cell that has a defect in the DNA polymerase III 3'-5' exonuclease activity (but all other mechanisms that ensure DNA replication fidelity intact?
Antibiotic resistance" is frequently cited example of natural selection. In your own words, write a primary post of at least 125 words explaining this example.
Suppose an uncorrected missense mutation occurs in a zygote at the one-cell stage. The cell divides twice to make a four-cell embryo.
You are investigating the scene of a hit and run where somebody's pet dog was killed. It is a very hot day so the dog's body temperature is unlikely to yield any important information regarding the time of death. The dog's limbs are movable and th..
However, we all have many similarities in our genetic code that translates to anatomical and physiological similarities between all humans, and even other animals! How can such a comparison be made?
After some time, you start your experiment. Before exposing the population to pesticide, you are able to determine that the frequency of the resistance allele in the sample is 0.08.
Describe how a vaccine for H1N1 works, listing the steps and include all the important terms such as memory B cells, immune system,antigens,antibodies,immunizatio,types of vaccines.
At puberty, the adolescent female body changes in both structure and function of several organ systems, primarily under an influence of changing concentrations of estrogen and other steroid hormones. How can one hormone, such as estrogen, mediate so ..
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