Question

For this chromosome (12*34567) where the "*" denotes the centromere. Draw and label each:

A) paracentric inversion

B) pericentric inversion

Answer 1

In Paracentric inversion, the centromere is outside the inversion, i.e., it does not include centromere. Therefore, for the chromosome, 12*34567, where, '*' denotes the centromere, the 456 region of the chromosome is inverted to give the locus order of 12*36547.

In Pericentric inversion, inversions span the centromere, i.e., centromere is included in inversion.. Therefore, for the chromosome, 12*34567, where '*' denotes the centromere, the 2*345 region of the chromosome is inverted to give the locus order of 1543*267.