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In one gene inheritance pattern, if a yellow seeded pea plant is crossed with green seeded pea plant, the inferences that can be made from the F2 generation individuals are I. All plants are yellow seeded II. Yellow and green seeded plants are obtained in 3:1 ratio.III Yellow seeded homozygous and heterozygous plants are obtained in 1:2 ratio.IV. Half of the plants are homozygous and half of them are heterozygous for the character.

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a

I, II, III

b

II, III, IV

c

III and IV only

d

I, II, III, IV

answer is B.

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Detailed Solution

In Mendelian pattern of single gene inheritance, in F2 generation the phenotypic ratio with respect to a single character is 3:1 (3 yellow seeded and 1 green seeded). The genotypic ratio in F2 is YY (homozygous yellow) 1: Yy (heterozygous yellow) as 2 : yy (homozygous green or green) as 1.

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In one gene inheritance pattern, if a yellow seeded pea plant is crossed with green seeded pea plant, the inferences that can be made from the F2 generation individuals are I. All plants are yellow seeded II. Yellow and green seeded plants are obtained in 3:1 ratio.III Yellow seeded homozygous and heterozygous plants are obtained in 1:2 ratio.IV. Half of the plants are homozygous and half of them are heterozygous for the character.