Multiple choice

If A is dominant gene and a is recessive gene and a cross produces 1 : 1 ratio of phenotypes in F1 generation, then the parental genotypes are

  1. Aa X Aa

  2. Aa X aa

  3. AA X aa

  4. AA X AA

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

The parental genotypes are Aa and aa.