Question

A scientist observed that DNA that was exposed to UV radiation has an unnatural bond formation (dimer) between two thymine nucleotides, as shown in the following figure.

Answer 1

Which statement describes the most likely effect of this change?




A Because of chemical mutagens, the DNA strand will shorten.
B Because of a mutation, the DNA strand will not replicate properly.
C Because of chemical mutagens, hydrogen bonds in the DNA will become stronger.
D Because of a mutation, several base pairs in the DNA will switch places.

Answer 2

I need pls guys

Answer 3

@petiteme @wolfe8 please help

Answer 4

I'm not so sure but I think the sequence is messed up now.