Why are DNA primers an important ingredient in a PCR reaction?
Select all that apply
a) DNA polymerase cannot start to copy a DNA molecule without a single-stranded starting point.
b) DNA polymerase cannot start to copy a DNA molecule without a double-stranded starting point.
c) Primers create a single-stranded section of DNA.
d) Primers create a double-stranded section of DNA.

climate change and pollution

the answer is c.) there is a warm front in region a and a stationary front in region b.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.