Question

a = dominant a = recessive in which of the following situations would the dominant trait (a) always appear? when all gametes receive the dominant allele (a) when some gametes receive a damaged x chromosome when all gametes receive a recessive allele (a)

Explanation:

In genetics, if all gametes receive the dominant allele (A), then the offspring will have at least one dominant allele. According to the principles of Mendelian genetics, a dominant allele (A) will always express its trait when present. If gametes receive a damaged X - chromosome, it is not related to the expression of the A/a alleles. If all gametes receive the recessive allele (a), then the recessive trait will be expressed.

Answer:

when ALL gametes receive the dominant allele (A)