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If an organism has 14 chromosomes, the number of chromosome generated by nullisomy will be_____________________

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If an organism has 14 chromosomes, the number of chromosome generated by nullisomy will be_____________________

(a) 15

(b) 7

(c) 13

(d) 12

I have been asked this question in semester exam.

This interesting question is from Chromosomal Abnormalities : Aneuploidy topic in section Chromosomal Basis of Inheritance of Cytogenetics

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Correct option is (d) 12

Explanation: Nullisomy results in (2n-2) set of chromosome, here n=7, so it will result in 12 chromosome over all.

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