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 strand contains the bases:

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

Which statement describes the result of this exposure?

(1) A new base has been inserted.

(2) A base has been deleted.

(3) One base has been substituted for another.

(4) There have been no changes in the bases.

Question

Biology

Anton Simon

2 December, 15:18

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 strand contains the bases:

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

Which statement describes the result of this exposure?

(1) A new base has been inserted.

(2) A base has been deleted.

(3) One base has been substituted for another.

(4) There have been no changes in the bases.

+5

Answers (1)

Know the Answer?

Isabel Grimes · Answer 1

I think the correct answer from the choices listed above is option 1. The statement that would describe this insertion would be that a new base had been inserted. As you can see, G is inserted between G and C. Hope this answers the question. Have a nice day.