PCR can be used to amplify a specific fragment of DNA from which of the following?
A.A drop of blood
B. A hair follicle
C. A fragment of skin
D. All of these
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The answer is D. All of these
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Answer:
D. all of these
Explanation:
Blood, hair follicle, and skin have a nuclear composition in the cell. In PCR, DNA is used to amplify a small DNA fragment to obtain its large quantities. It is done with the help of different requirements such as an enzyme (Taq polymerase), high temperature (40 degrees - 98 degrees), and Magnesium. PCR is beneficial in DNA fingerprinting and criminal investigations where a piece of blood/ hair/ skin tissue is used.
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