A) monosomy
B) nullisomy
C) trisomy
D) tetrasomy
Correct Answer: A
Solution :
When a change in the chromosome number does not involve entire sets of chromosome and restrict to only a few of chromosome, the situation is called aneuploidy. Aneuploidy may be of following types [a] Monosomic \[(2n-1)\] [b] Trisomic \[(2n+1)\] [c] Nullisomic \[(2n-2)\] [d] Terrasomic \[(2n+2)\] [e] Double monosomic \[(2n-1-1)\] [f] Double trisomic \[(2n+1+1)\]
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