21. Why are there nucleotides (A, T, C and G) in the master mix? A. To prevent D

Question

21. Why are there nucleotides (A, T, C and G) in the master mix? A. To prevent DNA degradation B. The dNTPs are the nucleotides that are incorporated into DNA strands C. For DNA denaturation D. All of the above 22. restriction endonuclease digestion & gel electrophoresis A. Two techniques commonly used to analyze DNA B. Restriction digestion C. Gel electrophoresis D. None of the above 23. What are the components of the "Restriction digestion"? A. PCR machine, Taq polymerase, DNA template B. DNA, restriction enzyme, buffer C. Plasmid, competent cell, agar plate D. None of the above

Explanation / Answer

21) B

dNTP's are bulding blocks of new of proteins

22) Option A

For analyzing DNA by gel electrophoresis. For example, it might be necessary to determine DNA fragment sizes after cutting the DNA with restriction enzymes .

23) DNA, Restriction enzyme and buffer are the components for restriction digestion.

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