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Question: DNA sequences differ between species due to substitution events, i.e. when new mutations arise and become fixed by drift or selection in one of the species. What does the rate of neutral substitution depend on?
a. The population size
b. The probability of fixation of new mutations
c. The neutral mutation rate
d. The relative abundance of beneficial versus neutral mutations
e. The frequency of nearly neutral alleles
Why is the frequency of the sickle-cell gene different in North America versus Africa. Now what is your definition of male and female? This is a 26-year-old female with congenital adrenal hyperplasia. What do you say.
though , the addition of a trace of uniformly labeled [14C]acetyl-CoA in the presence of an excess of unlabeled malonyl-CoA to a soluble liver fraction yields palmitate labeled with 14C only in C-15 and C-16.
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An oak tree will produce thousands of acorns that are buried or eaten by squirrels. Explain why would the tre require to make so many a corns? why might a plant whose seeds disperse far from the parent
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How might Lucy conceive a child with just one ovary and one uterine tube, widely separated on opposite sides of the pelvis like this.
Indicate how the landfill under construction will be superior to the old landfill for each difference. Plan a new product. "Build" your new product.
assume that the Nernst potential (across a neurons plasma membrane) for Mg(2+) is a 100+ mv. Calculate the fold concentration gradient for magnesium and explain in which direction it lies across the membrane (more on the inside or outside of the c..
t is well known that rubbing a minor wound inhibits the sensation of pain that an individual is experience. Please design a circuit that would explain this phenomenon (i.e., how would you put together a set of neurons in the spinal cord or beyond to ..
Suppose that a typical stomach pH of 2.0, how many times more concentrated are the hydrogen ions inside your stomach than in milk?
Assume the charge at the center is now increased to +9Q, while the charge at the surface of the conductor is changed to -13Q.
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