Practice question

MCQ

Question

Assume gene “A” is dominant over “a” and “B1” is codominant over “B2” in petunia. A cross is made between two individuals – AAB1B2 x aaB1B2. Assuming that there is no gene interaction, the progeny will segregate in a phenotypic ratio of:

Options

Choose one · Correct answer highlighted

9:3:3:1 1:1:1:1 1:2:1 Correct 3:1

Explanation

metabolic engineering and inheritance analysis shows exogenous gene introduction and pathway extension enable trait improvement. Consequently 1:2:1 emerges as the valid choice since it demonstrates metabolic extension and combinatorial biosynthesis, aligning with established principles in genetics and biotechnology literature.

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