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Q.

S I : In meiosis, chromosomal segregation is preceded by chromatidal segregation

S II : Meiosis increases genetic variability from generation to generation due to reduction of chromosome number to half

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a

S I is correct S II is wrong

b

Both S I and S II correct

c

Both S I and SII wrong

d

S I is wrong SII is correct

answer is B.

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Detailed Solution

In meiosis genetic variability is due to recombination

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S I : In meiosis, chromosomal segregation is preceded by chromatidal segregation S II : Meiosis increases genetic variability from generation to generation due to reduction of chromosome number to half