Two chromosomes have the following segments where represents

Two chromosomes have the following segments, where represents the centromere: K L M N O P Q R S T U V W X Y Z What type of chromosome mutation would result in the following chromosomes: K L M N O P Q R S T X W V U Y Z a. Deletion b. Pericentric inversion c. Paracentric inversion d. Nonreciprocal translocation e. Reciprocal translocation

Solution

Ans b pericentric inversion

Pericentric inversion will always include the centromere. Note that, the break im chromosome occurs at the either sides of centromere involving equal number of sequences each side and then it is inverted as such that the sequences get turned along the chromatid.

Do not confuse this with paracentric inversion, where the break appears on only side of the homologous chromosome, and the sequences get turned up.