Question at position 32 In a population of 100 squirrels, 16 are red (rr), 36 are gray (RR), and 48 are brown (Rr). The relative frequency of the r allele isimpossible to determine from these data0.160.400.64Clear my selection单项选择题

A

impossible to determine from these data

B

0.16

C

0.40

D

0.64

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Researchers are studying a population of frogs in which a single codominant gene controls spot color. The B allele produces black spots. The R allele produces red spots. In a population of 100 frogs, the researchers observe the following phenotypes Population Phenotypic Data Phenotype Number of Individuals Black spots 40 Black and Red spots 40 Red spots 20 What represents the gene pool for this population? [ Select ] The 40 individuals with black spots The 100 frogs ina the population The frequency of the B allele The 200 total alleles for the gene What is the frequency of the B allele in this population? [ Select ] 0.70 0.50 0.60 0.40

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