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Ignoring seed colour, the share of a dihybrid F2 generation with round seeds is:
AThree quarters
BThree fifths
CThree eighths
DThree tenths
Answer & Solution
Correct answer: A. Three quarters
1. Considering one characteristic alone gives a 3 to 1 ratio.
2. Three of every four offspring show the dominant form.
3. So three quarters have round seeds.
_Source: OpenStax Biology 2e, Chapter 12, Mendel's Experiments and Heredity._
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