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posledela
3 years ago
14

Cystic fibrosis is a recessive genetic disease caused by a mutation in the gene that encodes the CFTR protein, which transports

chloride ions in and out of cells. Some populations have a relatively high rate of cystic fibrosis carriers, possibly because the mutation protects against severe dehydration in diseases like cholera or typhoid. What concept does this best illustrate?
A: Polygenic traits
B: Genetic drift
C: Pleiotrophy
D: Heterozygote advantage
Biology
1 answer:
yaroslaw [1]3 years ago
8 0

its letter b the genetic drift because it is mechanism of evolution in which allele frequencies of a population change over generation due to chance.

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