Question

What are the two major types of genetic changes and describe the difference.

Answer 1

does it mean like recessive and dominant?

Answer 2

I have no idea maybe.

Answer 3

well recessive mutation is where both alleles must be mutant in order for the mutant phenotype to be seen/observed. Some dominant mutations are where two copies of a gene are required for normal function, so that removing a single copy leads to mutant phenotype.

Answer 4

does that help?