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Minchanka [31]
2 years ago
9

A strand of DNA in a skin cell contains the bases: A-T-G-C-C-A-T-C-G-G-T-A After the cell is exposed to ultraviolet light, the s

trand contains the bases: A-T-G-G-C-C-A-T-C-G-G-T-A Which statement describes the result of this exposure?a. A new base has been inserted.b. A base has been deleted.c. One base has been substituted for another.d. There have been no changes in the bases.
Biology
1 answer:
Zarrin [17]2 years ago
6 0

Answer:

<h2>A</h2>

Explanation:

1. As given, the of a strand DNA contain sequence;

A-T-G-C-C-A-T-C-G-G-T-A,

2. After exposure to UV light, the strand contain the bases;

A-T-G-G*-C-C-A-T-C-G-G-T-A,

3. By comparing both the strands, we find that, the strand of DNA after exposure to UV contain extra G nucleotide between G and C, which is resulted by an insertion.

So we can say that, a new base has been inserted.

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