Question

Parents with the dominant phenotype cannot have offspring with the recessive phenotype.
True, because the dominant gene must be passed down from each parent.
True, because at least one dominant gene will be passed down from each parent.
False, because one parent could carry the recessive allele.
False, because both parents could carry the recessive allele.
True, because both parents have the dominant allele.
please help me

Answer 1

Having the dominant phenotype does not preclude the existence of the recessive allele in the cells - it simply means that the individual has at least one copy of the dominant allele which masks expression of the recessive allele (if present, in a heterozygous state). Hence, the correct answer should be 'False, because both parents could carry the recessive allele.'