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________________ aneuploidy is better tolerated.

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________________ aneuploidy is better tolerated.

(a) Nullisomic

(b) Autosomal

(c) Sex chromosomal

(d) Chromosome 13

I had been asked this question in unit test.

Query is from Chromosomal Abnormalities : Aneuploidy in section Chromosomal Basis of Inheritance of Cytogenetics

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Correct option is (c) Sex chromosomal

The explanation is: In case of sex chromosome due to dosage compensation in female one of X chromosome is inactivated. This is similar to the absence of a sex chromosome, which makes sex chromosome aneuploidy less lethal.

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