AP BIOLOGY

LABORATORY REVIEW

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is amplified using the polymerase chain reaction (PCR)?
A
Large amounts of RNA
B
Small amounts of DNA
C
Small amounts of protein
D
Large amounts of polymers
Explanation: 

Detailed explanation-1: -PCR involves using short synthetic DNA fragments called primers to select a segment of the genome to be amplified, and then multiple rounds of DNA synthesis to amplify that segment.

Detailed explanation-2: -Polymerase chain reaction (PCR) is a technique used to “amplify” small segments of DNA.

Detailed explanation-3: -PCR makes it possible to produce millions of copies of a DNA sequence in a test tube in just a few hours, even with a very small initial amount of DNA.

Detailed explanation-4: -PCR tests can detect disease when there is only a very small amount of pathogens in your body. During a PCR test, a small amount of genetic material in a sample is copied multiple times. The copying process is known as amplification. If there are pathogens in the sample, amplification will make them much easier to see.

Detailed explanation-5: -For instance, DNA amplified by PCR may be sent for sequencing, visualized by gel electrophoresis, or cloned into a plasmid for further experiments. PCR is used in many areas of biology and medicine, including molecular biology research, medical diagnostics, and even some branches of ecology.

There is 1 question to complete.