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NEET2009ZoologyPrinciples of Inheritance and VariationActual

Chromosome complement with 2 n-1 is called

Options

  1. Amonosomy
  2. Bnullisomy
  3. Ctrisomy
  4. Dtetrasomy

Correct answer

A. monosomy

Step-by-step 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 (2 n-1) (b) Trisomic (2 n+1) (c) Nullisomic (2 n-2) (d) Tetrasomic (2 n+2) (e) Double momosomic (2 n-1-1) (f) Double trisomic (2 n+1+1)

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