Cells replicate DNA

A) during the M phase of the cell cycle.

B) all the time.

C) during the S phase of the cell cycle.

D) only when a person is stressed.


C) during the S phase of the cell cycle.

Biology & Microbiology

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Surgery is an effective method of treating cancer when

A) a primary tumor has spread through the blood stream. B) a primary tumor is yet to invade healthy tissue. C) all rapidly dividing cells are targeted by the surgery. D) a patient has multiple tumors spread across his or her body.

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Could two phenotypically normal parents have an affected child?

a. Yes b. No

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Identical gene loci are located on ____________________. Fill in the blank(s) with the appropriate word(s)

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External genitalia of the male reproductive system include the

A) ejaculatory duct. B) urethra and scrotum. C) penis and scrotum. D) penis. E) penis, urethra, and ejaculatory duct.

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