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Question 56 of 80

Q.The recessive trait to the dominant trait of yellow cotyledon is :

(a) Green cotyledon
(b) White cotyledon
(c) Axial cotyledon
(d) Wrinkled cotyledon
Puducherry TnboardTamil Nadu HSC (DGE) Board 2022MCQ· 1mImportance★★★★★
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Green cotyledon is the recessive alternative to Mendel's dominant yellow-cotyledon trait in garden pea.

Among the seven contrasting characters Gregor Mendel studied in the garden pea, seed/cotyledon colour was one pair: yellow cotyledon colour is dominant and green cotyledon colour is recessive. When Mendel crossed pure-breeding yellow-seeded and green-seeded plants, the F1 generation was uniformly yellow, and self-pollinating the F1 produced an F2 generation showing yellow and green seeds in the classic 3:1 ratio, demonstrating that yellow masks green in heterozygotes and that green reappears only when both alleles are recessive. The other listed options are not the alternative state of this specific character: white cotyle …

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