Question

What is the difference between a dominant trait and a recessive trait?(1 point)
Responses

A dominant trait is expressed if at least one allele is present
A dominant trait is expressed if at least one allele is present

A dominant trait is only expressed if two alleles are present.
A dominant trait is only expressed if two alleles are present.

A recessive trait is only expressed if one allele is present.
A recessive trait is only expressed if one allele is present.

There is no difference between them.

Answer 1

Correct choice: "A dominant trait is expressed if at least one allele is present."

Explanation: A dominant allele shows its trait in both homozygous (AA) and heterozygous (Aa) genotypes, while a recessive trait is expressed only when both alleles are recessive (aa).