Snapdragons have a pattern of heredity for flower color called incomplete dominance. if the flower-color genotypes are known in a population of snapdragons, you can calculate the allele frequencies for the flower-color alleles r and r’.

what are the frequencies of the r and r’ alleles in this population? assume the conditions of hardy-weinberg equilibrium apply.

genotype frequency allele frequency
rr = red = 0.5625 r=
rr’ = pink = 0.375
r’r’ = white = 0.0625 r'=

answer choice: 0.75,0.50,0.25,0.125

According to Hardy-Weinberg equilibrium principle, in absence of any evolutionary developments, the alleles and genotypes of a living organism will remain at a constant from generation after generation.

Explanation:

Absence of evolutionary changes brings the change of genotypes frequencies to a standstill. Accordingly the punnett square method is also modified which give offsprings with following genotypes:

Hence the allele frequency of R is 0.75 and R' is 0.25 respectively.

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