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Question

Loss of a single chromosome produces a condition called

A
Haploidy
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B
Nullisomy
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C
Trisomy
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D
Monosomy
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Solution

The correct option is D Monosomy
  • Monosomy: the condition of having a diploid chromosome complement in which one chromosome lacks its homologous partner.
  • A trisomy is a chromosomal disorder characterized by an additional chromosome, so the person has 47 instead of 46.
  • Nullisomic is a genetic condition involving the lack of both the normal chromosomal pairs for a species (2n-2).
So, the correct answer is 'Monosomy'.

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