Multiple choice

In a monohybrid cross, pure homozygous plants in F2 generation will be

  1. 9

  2. 2

  3. 1

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

In a monohybrid cross, the F2 genotypic ratio is 1:2:1 (1 homozygous dominant: 2 heterozygous: 1 homozygous recessive). There are exactly 2 types of pure homozygous plants - those with both dominant alleles and both recessive alleles.

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