What elements make up most of the sun?

What is the name for a substance formed in a chemical reaction

Mutations associated with albinism affect proteins involved in synthesis

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim