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

BiologyPrinciples of Inheritance and VariationMutationMedium2 minPYQ_2026
BiologyMediumsingle choice

Identify the chromosomal aberration from the given diagram

Options:

Answer:
D
Solution:

Based on the given diagram, the original chromosome has the gene sequence A-B-C-D-E-F-G-H.

After the chromosomal aberration, the new sequence is M-N-O-C-D-E-F-G-H.

The segments A and B have been replaced by entirely new segments M, N, and O. The presence of these new genes indicates that a segment from a non-homologous chromosome has been attached to this chromosome.

The transfer of a chromosomal segment to a non-homologous chromosome is known as translocation. Therefore, the diagram illustrates translocation.

Answer: Translocation

Stream:MHT_CET_MEDICALSubject:BiologyTopic:Principles of Inheritance and VariationSubtopic:Mutation
⏱ 2mℹ️ Source: PYQ_2026

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