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aliya0001 [1]
2 years ago
8

Which best describes chromosomal deletion?

Biology
2 answers:
kondor19780726 [428]2 years ago
6 0
Chromosomal deletion is the loss of genetic code, caused by a segment of chromosome breaking away during DNA replication. The best answer is the third one, "when part of a chromosome breaks off and does not reattach."

The first answer, "part of a chromosome breaks off and is inserted into the middle of another", describes chromosomal insertion.

The second answer, "part of a chromosome breaks off and reattaches backward", describes chromosomal mutation.

The final answer, "part of a chromosome breaks off and attaches to another", describes chromosomal translocation.
Rzqust [24]2 years ago
6 0

Answer:

Basically when the <u>part of a chromosome breaks and doesn't reattach </u>therefore "deletion"

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