The idea that all living things are made up of cells is considered scientific law. this means the idea

Describe how alleles and genes are related

Organisms that successfully adapt will leave to grownone of the above

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