Which of the following is true if unwinding occurs in the middle of a molecule of DNA?

A) Replication occurs only in the forward direction.
B) Replication occurs only in the reverse direction.
C) Replication occurs in both directions.
D) replication does not occur.


C

Environmental & Atmospheric Sciences

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What will be an ideal response?

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Indicate whether the statement is true or false

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Air pressure can be expressed in which of the following units?

A) atmospheres B) millimeters of Hg C) torr D) any of these

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On average, mammals were _______ in the Mesozoic than they are in the Cenozoic

a. smaller b. larger

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