1. Why were the “aa” allele pairs taken out of the gene pool after each generation? 2. How did the frequency of black, gray, and white moths change over 8 generations?

3. Is it possible for a white moth to be born from a population of only black and gray moths? Explain your answer.

Step 1 review the imaginary strand of dna below. note the complementary base pairs. a g c a a t c c g t c t t g g t c g t t a g g c a g a a c c step 2 to begin replicating this strand of dna, draw the two sides of the strand separating. step 3 now, draw the free-floating bases linking up with the separate sides. remember to follow the rules of complementary base pairing. step 4 draw the two resulting dna strands.