Multiple choice

How many different types of gametes will be formed if the genotype of both the parents is AABB?

  1. One

  2. Two

  3. Three

  4. Four
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When a parent has genotype AABB (homozygous dominant for two genes), it can only produce gametes containing AB. Since each parent contributes one allele for each gene, and both parents are AABB, all offspring will inherit A from one parent and B from the other. Therefore, only one type of gamete (AB) is possible.

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