Why Does a New DNA Strand Elongate Only in the 5

question 65

Multiple Choice

Why does a new DNA strand elongate only in the 5' to 3' direction during DNA replication?

• A) DNA polymerase begins adding nucleotides at the 5' end of the template.
• B) The polarity of the DNA molecule prevents addition of nucleotides at the 3' end.
• C) Replication must progress toward the replication fork.
• D) DNA polymerase can add nucleotides only to the free 3' end.

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Definitions:

Womb

Another term for the uterus, the reproductive organ in females where fetal development occurs.

Uterus

A primary organ in the female reproductive system of numerous animals, including humans, that serves as the site for fertilization and subsequent gestation of offspring prior to delivery.

Follicles Development

The process involving the maturation of ovarian follicles, which can result in the release of an egg during the menstrual cycle.

Ovary

The female reproductive organ in plants and animals where eggs or ovules develop and hormones are produced.