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Mama L [17]
3 years ago
6

Read the scenario.

Biology
1 answer:
Gennadij [26K]3 years ago
4 0

Answer:

C. He forgot to add primers.

Explanation:

The major components of a PCR include:

  • A sample DNA which is the DNA that needs to be amplified.
  • A DNA polymerase, an enzyme that synthesizes new DNA strands from the sample DNA.
  • A primer which represents the starting sequence for the new strand of DNA to be synthesized.
  • Free nucleotides in form of Deoxynucleoside triphosphates (dNTPs)

<em>The graduate student forgot to add primers which are essential as a starting point on which the synthesis of new DNA strand is based. DNA ligase is not needed for PCR, but during DNA replication.</em>

The correct option is C.

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