OBJECTIVE LIFE SCIENCE
BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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determine the sequence of DNA.
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make copies of a DNA sequence.
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selectively breed plants and animals.
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produce mutations in bacteria.
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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: -PCR essentially mimics cellular DNA replication in the test tube, repeatedly copying the target DNA over and over, to produce large quantities of the desired DNA.
Detailed explanation-3: -DNA polymerase (DNAP) is a type of enzyme that is responsible for forming new copies of DNA, in the form of nucleic acid molecules.
Detailed explanation-4: -The polymerase chain reaction (PCR) allows the in vitro amplification of DNA fragments starting with tiny amounts of biological sample and oligonucleotide primers derived from sequence data. Since the technique is fast and easy, PCR has taken the DNA-technology to the routine laboratoria.