Multiple choice general knowledge

The gene for which Antigen is the dominant gene

  1. A

  2. B

  3. O

  4. Both A and B

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Genes for both A and B antigens are dominant over O. This means if a person inherits an A gene from one parent and a B gene from the other, they will have AB blood type (both antigens expressed). The O allele is recessive and only expressed when no A or B is present.