Question

Where do new genes come from?

1.The mutation of existing genes
2.The duplication, and then mutation, of existing genes.

Answer 1

I eliminated the other two answers and im leaning towards 1

Answer 2

Also what is a group of related genes called?

Answer 3

a group of related genes is a gene cluster. in some areas, genes that together code for 1 thing, like in prokaryotes, are called operons.

Answer 4

@coolshava No, a group of related genes is called a gene family though gene clusters are groups of similar genes within the family. An operon is a series of genes that work together, operons are frequently made with genes from different gene families.

For the question, look at it this way: would it be more likely for a gene to gain a new function through mutations that alter it or though a duplication, which would leave at least one functional copy of the gene, and then mutations to one of the copies of the duplicated gene, but not all copies?

Answer 5

from variation and speciation and divergence and mutation etc

Answer 6

2.