Question:medium

Mendel crossed peas having round green seeds with peas having wrinkled yellow seeds. All \(F_1\) plants had seeds that were round and yellow. What will be genotypic ratio of testcrossing these \(F_1\) plants?

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Remember: \[ \text{Dihybrid test cross: } RrYy \times rryy \] Produces: \[ 1:1:1:1 \]
• Round Yellow
• Round Green
• Wrinkled Yellow
• Wrinkled Green all in equal proportions.

Updated On: Jun 6, 2026

\(3:1\)
\(9:3:3:1\)
\(12:3:1\)
\(1:1:1:1\)

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The Correct Option is D

Solution and Explanation

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List-I	List-II
A. Abscisic acid	I. Promotes female flowers in cucumber
B. Ethylene	II. Helps seeds to withstand desiccation
C. Gibberellin	III. Helps in nutrient mobilisation
D. Cytokinin	IV. Promotes bolting in beet, cabbage etc

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B. ETS Complex II	IV. Succinate Dehydrogenase
C. ETS Complex III	II. Cytochrome b_c1
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Mendel crossed peas having round green seeds with peas having wrinkled yellow seeds. All \(F_1\) plants had seeds that were round and yellow. What will be genotypic ratio of testcrossing these \(F_1\) plants?

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The Correct Option is D

Solution and Explanation

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