Comparing and contrasting overfishing and clear cutting

Dna is the genetic material that makes up living things, and folic acid plays an important role in the information of dna. jon wants to study the effect of folic acid on dna formation in microbes. which statement accurately describes the variables in this study

What are the types of mutations, and how does each alter the encoded protein? college level answer

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.