What is the role of trna during translation?

a. it breaks apart the mrna molecules.
b. it translates from amino acids to nucleic acids.
c. it links the correct amino acids together.
d. it provides the code for the protein.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).