4
AssignmentMultiple Choice

Chromosomal Changes

Question 4 • First Semester Biology

The end of chromosome 14 breaks off and attaches to chromosome 4. Which chromosomal mutation occurred?

Answer
A
translocation
B
inversion
C
insertion

Explanation

A translocation occurs when a chromosome segment breaks off and attaches to a different chromosome. Here, the end of chromosome 14 attaches to chromosome 4, so the mutation is a translocation. An inversion would flip a segment within the same chromosome, while an insertion places extra genetic material into a chromosome.

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