All Extant Copies of a Gene Eventually Coalesce; This Occurs

question 23

Multiple Choice

All extant copies of a gene eventually coalesce; this occurs because

• A) a particular allele becomes fixed in the population.
• B) all extant genes coalesce at the same time in the same individuals.
• C) the rate of coalescence speeds up as a population increases in size.
• D) the original population consisted of only a single individual with the ancestral allele.

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