Question

A recessive allele will only be expressed when a dominant allele is not present.(1 point)

Answer 1

This is because recessive alleles are only expressed in the phenotype when an individual has two copies of the recessive allele, as it lacks a dominant allele to mask its expression. If an individual has at least one dominant allele present, the dominant allele will be expressed in the phenotype, masking the expression of the recessive allele.