PCR Review

Front

What happens in the Denature step of PCR?

Back

The double-stranded DNA is separated into two single strands of DNA.

Front

What is the purpose of the polymerase chain reaction (PCR)?

Back

A technique for making millions of copies of a specific region of DNA.

Front

What occurs when the temperature drops rapidly during PCR?

Back

Binding primers to the single-stranded DNA.

Front

How many cycles of PCR are typically needed to produce a double-stranded DNA fragment of the desired length?

Back

3 cycles.

Front

Why is Taq polymerase used in PCR?

Back

Taq polymerase can withstand the range of temperatures in PCR without denaturing.

Front

What is the role of primers in PCR?

Back

Primers are short sequences of nucleotides that provide a starting point for DNA synthesis.

Front

What is the significance of the annealing temperature in PCR?

Back

It is the temperature at which primers bind to the template DNA.

Front

What is the function of the extension step in PCR?

Back

It allows Taq polymerase to synthesize new DNA strands from the primers.

Front

What are the three main steps of PCR?

Back

Denaturation, Annealing, and Extension.

Front

What is the purpose of gel electrophoresis in relation to PCR?

Back

To separate and visualize the amplified DNA fragments.