Two alleles of the ldh gene occur in house flies, f and s. the table provides the number of offspring produced for individuals in of the three genotypes when raised in a lab environment.
w
ff
0.984
fs
1.200
ss
1.128
a) calculate the relative fitnesses rescaling them so that fs has a fitness of 1.0
b) calculate the average excess of fitness for the f allele when it is at a frequency of 0.2. will the frequency of a1 increase from 0.2, decrease, or stay the same?
c) calculate the stable equilibrium frequency at which the f and s alleles would be expected to persist in the laboratory population. use the equation given in lecture 6 (frequency-dependent selection): peq= t / (s + t)

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.