During mutagenic treatment with nitrous acid,an adenine deaminates to form hypoxanthine,which bonds like guanine.The mutational event would be:
A)AT to CG.
B)AT to GC.
C)AT to TA.
D)GC to AT.
E)GC to TA.

Question

Quizplus · Accepted Answer

Nitrous acid causes deamination of adenine to form hypoxanthine, which is recognized by DNA polymerase as guanine. Therefore, during replication, the hypoxanthine base pairs with cytosine instead of thymine, resulting in an AT to GC transition mutation.

During Mutagenic Treatment with Nitrous Acid,an Adenine Deaminates to Form