Multiple choice

Which type of mutation will result in the formation of an AT base pair in the mutant from a GC base pair?

  1. Specific mispairing

  2. Directed mutation

  3. Transversion mutation

  4. Conditional mutation

  5. Transition mutation
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

It is a point mutation involving substitution of one base pair for another by replacement of one purine by another purine and of one pyrimidine by another pyrimidine but without change in the purine-pyrimidine orientation. Here the GC base pair is changed to AT that is the purine G is substituted by another purine adenine and the pyrimidine C is substituted by another pyrimidine thymine. So it is a transition type of mutation. Hydroxylating agents can make such type of transition mutation.

Keep practicing — related questions