AP BIOLOGY

Detailed explanation-1: -Mutations are changes that occur in DNA or RNA. Mutations can be silent, meaning they have no effect on the protein made, due to redundancy in the genetic code.

Detailed explanation-2: -A mutation is a change in the DNA sequence of an organism. Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection.

Detailed explanation-3: -RNA viruses have high mutation rates-up to a million times higher than their hosts-and these high rates are correlated with enhanced virulence and evolvability, traits considered beneficial for viruses.

Detailed explanation-4: -A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke.