AP Biologyeasymcq1 pt
Which evolutionary process is the ultimate source of novel alleles?
A.Mutation
B.Genetic drift
C.Natural selection
D.Gene flow
Explanation
Core Concept
Mutation changes nucleotide sequences and is the ultimate source of novel alleles. Gene flow can introduce an allele that is new to a particular population, while selection and drift change frequencies of alleles that already exist.
Correct Answer
AMutation
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