At what temperature do denaturation of DNA double helix takes place?

1.	At what temperature do denaturation of DNA double helix takes place?
A.	60‚àö√Ñ‚àö‚àÇ
B.	54‚àö√Ñ‚àö‚àÇ
C.	74‚àö√Ñ‚àö‚àÇ
D.	94‚àö√Ñ‚àö‚àÇ
Answer» E.

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