alleryThe phenotypic ratio from a dihybrid cross is:
A3 to 3 to 1 to 1
B1 to 2 to 2 to 1
C9 to 1 to 1 to 9
D9 to 3 to 3 to 1
Answer & Solution
Correct answer: D. 9 to 3 to 3 to 1
1. Two characters are followed at once in this cross.
2. Four phenotypes appear among the offspring.
3. They appear in the ratio 9 to 3 to 3 to 1.
_Source: syllabus Biology, Chapter 5, Principles of Inheritance and Variation._
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