Find that there are only two phenotypes


You are interested in a population of pangolins (scaly anteaters) and find that 49% of the individuals have the homozygous recessive genotype (pp) for a gene of interest. You also find that there are only two phenotypes for this trait, suggesting that the allele "P" is completely dominant over the allele "p." Given this, determine the following:

a) The expected frequency of each allele (1 point):

Recessive allele (p) =

Dominant allele (P) =


b) The expected frequency of each genotype (1 point):

Homozygous recessive (pp) =

Homozygous dominant (PP) =

Heterozygous (Pp) =


c) The frequency of each phenotype (0.5 points):

Recessive phenotype =

Dominant phenotype =

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Biology: Find that there are only two phenotypes
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