Genetics Multiple Choice Question! 10pts!!?

1. A substitution from a purine to a purine or a pyrimidine to a pyrimidine is known as a(n)

a) transition mutation.

b) transversion mutation.

c) translocation mutation.

d)inversion.

e) Answers A and D are both correct.

2.A mutagen that alters cytosine through the addition of a hydroxyl group may lead to C-G to T-A transitions. This chemical is known as

A.) 5-bromouracil.

b) nitrous acid.

c) hydroxylamines.

d) 2-amino purine

e) ethylmethylsulfonate