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Q.

Pea plant with genotype BB and bb were cross pollinated. InF2  generation, 200 plants are obtained. Choose correct w.r.t phenotypes in F2 generation.

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a

100 will have intermediate starch grains

b

100 will have large starch grains

c

75 will have round seeds

d

150 will have wrinkled seeds

answer is B.

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Detailed Solution

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100 are intermediate size starch grain.

B or b alleles  control starch grain syntheiss.BB- large sized grain and bb for small size. 

But w.r.t seed size, B and b show incomplete dominance ,so the genotype Bb shows Intermediate type of starch grains.

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