There is a grove of trees on your farm that is home to a unique species of butte

Question

There is a grove of trees on your farm that is home to a unique species of butterfly. These butterflies have normal and albino variants: albinos are white, normal homozygotes are red, and heterozygotes are pink. When you surveyed this population, you found 150 red, 250 pink, and 100 white butterflies. a) What is the frequency of each genotype and allele? b) A murder of crows moved into your land and has eaten all the albino butterflies. What are the new allele frequencies? c) In the next generation, 500 butterflies are present. How many are albino?

Explanation / Answer

RR.........150

Rr...........250

rr.............100

p2 = 150/500=0.3 (RR)

q2 = 100/500=0.2 (rr)

pq = 250/500= 0.5 (Rr)

then p (allele frequency) =0.54

then q (allele frequency)=0.44

pq allele frequency is = 0.06

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