Question

PLEASE HELP WILL GIVE MEDAL!
(QUESTIONS BELOW)

Answer 1

Look at the following DNA segment:CATGCT
Which of the segments below would be complementary to the segment above during DNA replication?
a: GTACGA
b: CATGCT
c:CTAAGCA
d: CUAGCA

What is the frequency of the aa genotype in a population of horses, if the frequency of the A allele is 0.75, assuming the population is in equilibrium?

a: 0.0625
b: 0.75
c: 0.25
d: 0.5625

Answer 2

1. G pairs with C. A pairs with T. Everywhere in the first strand you see a G, you write in a C. Everywhere in the first strand you see an A, you write in a T.

2. Use the Hardy-Weinburg-Castle equation: 1 = A^2 + 2Aa + a^2 where A is the frequency of the dominant allele, the A = 0.75 they gave you. And solve that equation for little a.