Question

Which best describes a recessive allele?

always inherited from a parent when a dominant allele is inherited from the other parent
never inherited from a parent when a dominant allele is inherited from the other parent
only determines phenotype when a dominant allele for the same trait is present
does not determine phenotype when a dominant allele for the same trait is present

Answers

GPT-4o mini
The best description of a recessive allele is:

**does not determine phenotype when a dominant allele for the same trait is present.**

Recessive alleles only express their traits phenotypically when an individual has two copies of the recessive allele (homozygous recessive). If a dominant allele is present, it will mask the expression of the recessive allele.

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