Answers FL-2000310-Biology 1 Sem 1 - Flex Chromosomal ChangesQuestion 4

4

QuizMultiple Choice

Chromosomal Changes

Question 4 • FL-2000310-Biology 1 Sem 1 - Flex

Which best describes chromosomal deletion?

Answer

A

occurs when part of a chromosome breaks off and is inserted into the middle of another chromosome

B

occurs when part of a chromosome breaks off and reattaches backward on the same chromosome

C

occurs when part of a chromosome breaks off and does not reattach

D

occurs when part of a chromosome breaks off and attaches to another chromosome

Explanation

A chromosomal deletion happens when a chromosome segment breaks off and is lost rather than reattaching. That matches choice C. The other choices describe different chromosome changes, such as inversion or translocation.

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