Question

what is required in the genotype of an individual to show a recessive trait? at least one recessive allele two recessive alleles no recessive alleles

Explanation:

In genetics, a recessive trait is only expressed when an individual has two recessive alleles. If there is at least one dominant allele (as in the case of "at least one recessive allele"), the dominant trait will be expressed. And if there are no recessive alleles, obviously the recessive trait won't show.

Answer:

two recessive alleles