When every individual in a population carries an allele, that allele is said to be:
ANovel
BFixed
CLost
DRare
Answer & Solution
Correct answer: B. Fixed
1. Selection can spread an allele fully.
2. It becomes fixed.
3. Deleterious dominant alleles may be eliminated.
_Source: OpenStax Biology 2e, Chapter 19, The Evolution of Populations (CC BY 4.0)._
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