Zoology - Principles of Inheritance and Variation Question with Solution | TestHub

ZoologyPrinciples of Inheritance and VariationMutationEasy2 minPYQ_2020
ZoologyEasysingle choice

Given below is a representation of a kind of chromosomal mutation. What kind of mutation is represented?

Options:

Answer:
C
Solution:

During inversion, a segment of the chromosome gets inverted in the process of reattachment. Thus, a chromosome having the genes A B C D E F G H I in linear order may get the segment D E F inverted. The new arrangement will be A B C F E D G H I. It is a chromosome aberration entailing two breaks in a chromosome followed by a reversal of the segment and consequently of the gene sequence in the segment. Pericentric inversion includes the centromere in the inverted segment, whereas paracentric inversions do not.

Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Principles of Inheritance and VariationSubtopic:Mutation
⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...