in petunias, the alleles for flower color are P1 - pink and P2 - blue. Neither...

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in petunias, the alleles for flower color are P1 - pink and P2 - blue. Neither ailele is dominant. Heterozygotes (P1P2) for t

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Answer 1

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Choice B: 1/4

Explanation: Petunias flower has 2 allele P1(pink) and P2 (blue) and both are not dominant. So these two will give equal phenotypic ratio after F2 generation (punnet square). Pink and blue there fore give a ratio of 1/4. Then the remaining 2/4 will be purple flower.

Pink- 1/4

Blue-1/4

Purple-2/4

So the phenotypic ratio is 1:2:1.

So that the Choice “B” alone is correct from the given statement. Other choices are wrong for the given statement.

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Answer 2

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