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Animal Biotechnology Chromosomes

Q1:

An odd number of cross overs in inverted region will result into formation of a dicentric chromatid and acentric chromatid at anaphase I incase of

A pericentric inversion

B paracentric inversion

C double inversion

D none of these

ANS:B - paracentric inversion

Paracentric inversion:Two breaks on one side of centromere; arm ratio is unchanged.

Pericentric inversion:one break in each arm:often arm ratio is changed. Recombination have duplication and deficiency of chromosomes segment.



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