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Consider a mainland-island migration scenario where two alleles are segregating and the observed frequencies of heterozygotes are such that H=.32 for the mainland and H=.5 for the island. (These are the values of heterozygosity) What are Pisland and Pmainland? Assume Hardy-Weinberg equilibrium.
Equation given was
Pisland = Pmainland + ( 1 - m) ^ t (Po - Pmainland)
where m = mutation rate and Po = original population frequency
Imagine that you have engineered a set of genes, each encoding a protein with a pair of conflicting signal sequences that specify different compartments. If the genes were expressed in a cell, predict which signal would win out for the following c..
What specific DNA sequence would you look for to determine if your mouse has the knockout gene, and what techniques would you use to detect this DNA sequence?
Rarely, hens reverse phenotypic (not chromosomal dew late in life and develop into sprem producing males. If such a male were to be mated to a normal female,what sex ratio will be expected among the offsrping.
Determine which variable is the independent variable--the variable that was controlled by the researchers? Is the independent variable on the x -axis or the y -axis?
Below is a segment of bacterial Lac Operon sequence. An E. coli transcript with the first 5 nucleotides 5' AUGU3'. Write the sequence of the primary RNA transcript starting at 5' aUUGU3'. include polarity of the transcript.
XPA is a recessive DNA repair disorder that causes skin cancer with even the smallest exposure to sunlight. Heterozygotes (Xx) are carriers, but are not affected. In the U.S., 1/250,000 people have the disease. In Japan, 1 in 22,000 has the diseas..
A 0.02 M weak acid solution was measured to have a pH of 4.6 determine the [H+] in the solution and compute the acid dissociation constant,
How can 2 pairs of DNA loci be the same physical distance (in base pairs) apart, but vary in genetic distances (recombination frequency)?
The definition of antigen and the chemical characteristics of antigens, The definition of antigen and the chemical characteristics of antigens, haptens and how they become antigenic.
Explain the four main stages of food processing in mammals and indicate where each process occurs along the tubular digestive tract.
In an experiment you are studying a neuron that receives synaptic inputs from two other neurons: one from neuron A and one from neuron B. Illustrate a separate graph for each value of Vm.
If the control is solid and an inoculated tube is liquid, is it acceptable to read the results before the complete incubation time has elapsed? Why or why not.
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