OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In Mendel’s model of segregation, what was the ratio of tall plants to short plants in the F2 generation?
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1:1
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3:1
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10:1
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1:3:3:1
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Explanation:
Detailed explanation-1: -Botany Mendel crossed tall and dwarf plant. In F2-generation the observed ratio was 3 : 1 (tall : short). From this result, he deducedI. law of dominance.
Detailed explanation-2: -The F2 generation always produced a 3:1 ratio where the dominant trait is present three times as often as the recessive trait. Mendel coined two terms to describe the relationship of the two phenotypes based on the F1 and F2 phenotypes.
Detailed explanation-3: -The F2 generation results from self-pollination of F1 plants, and contains 75% tall stems and 25% short stems.
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