In a cross between two heterozygous tall pea plants, , what is the genotypic ratio of the offspring?
Answer and explanation
Correct answer: A. 1 TT : 2 Tt : 1 tt
- Step 1: The gametes from each parent are and . Step 2. The combinations give , , and , so the ratio is 1 : 2 : 1. Answer: 1 TT : 2 Tt : 1 tt. Why not the others: 3 : 1 is the ratio of tall to short appearances, not of genotypes.
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