A dwindling population of 1000 frogs occupies an isolated watershed In Costa Ric

Question

A dwindling population of 1000 frogs occupies an isolated watershed In Costa Rica. To help preserve the species, scientists caught 20 frogs to start a new population in a nearby watershed. This species has a gene that affects eye shape. The 1000-member wild population has two alleles for this gene: R and r, with frequencies 0.7 and 0.3, respectively. What will be the allele frequencies of R and r in the 20-member founder population? The frequencies will be 0.7 for R and 0.3 for r. The frequencies will be 1.0 for R and 0 for r The expected frequencies are 0.7 for R and 0 3 for r. The actual frequencies could be different. The founder populations allele frequencies will necessarily be different than the source population's frequencies.

Explanation / Answer

Ans-

The frequency of allele will be same in 20 frogs as the 20 frogs were picked from the isolated watershed of the 1000 frogs i.e. 0.7 for R and 0.3 for r.

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