Which statement regarding the Polymerase Chain Reaction (PCR) is TRUE? Group of answer choices The primers that are used to start a PCR reaction must be double-stranded and cannot be complementary to the target DNA. PCR uses a DNA polymerase that functions best at cold temperatures. A single PCR reaction can be used to duplicate an entire genome. The amount of target DNA segments doubles with each cycle of PCR.

The amount of target DNA segments doubles with each cycle of PCR.

Explanation:

A polymerase chain reaction is an in vitro technique that is performed in the labs to replicate the DNA from a very small amount of DNA sample. The DNA sample is replicated or double in a very small amount of time that is the target sample doubles after each cycle.

The PCR technique is based on the DNA replication mechanism and thus employs the primer, A Taq DNA polymerase enzyme and the adequate amount of temperature.

Thus, the selected option is correct.

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.