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Which of the following represents nullisomic conditions?(a) 2n-1(b) 2n-2(c) 2n+1(d) 2n+2This question was addressed to me during an interview.This interesting question is from Inheritance and Variation Principles in chapter Principles of Inheritance and Variation of Biology – Class 12

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Right answer is (B) 2n-2

The best EXPLANATION: 2n-2 REPRESENTS nullisomic condition which is a TYPE of aneuploidy. 2n-1, 2n+1, and 2n+2 represent the monosomic condition, trisomic condition, and tetrasomic condition respectively.



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