Biology for IGCSE & O level - Inheritance (Section 2 - No. 48)
Which of the following is a characteristic of dominant alleles?
They are only expressed when homozygous.
They mask the expression of recessive alleles.
They are only expressed when heterozygous.
They are expressed only in males.
Explanation
Dominant alleles mask the expression of recessive alleles when present in the same individual.
Comments (0)
