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.
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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.
Could two phenotypically normal parents have an affected child?
a. Yes b. No
Identical gene loci are located on ____________________. Fill in the blank(s) with the appropriate word(s)
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.