Which term best describes how often mutations occur?
a. rarely
b. occasionally
c. frequently
d. constantly

Mrna decodes information from the original dna master plan to build proteins in the during the process of ribosomes.

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

Ascientific idea becomes valid when it is what?