Which of the two parts of the light microscope magnify image of an object?​

How many major plates cover the earth

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

True or false multiple lane changes must be done individually going through the same procedures for each lane change