A/an ________is an environmental agent that causes changes in DNA structure.
Fill in the blank(s) with the appropriate word(s).
mutagen
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The polar portion of a cholesterol molecule, which forms hydrogen bonds with the polar heads of neighboring phospholipids and glycolipids, consists of a
a) -OH group. b) -CH3 group. c) -CH4 group d) -COOH group e) None of these choices is correct.
The collateral ganglia are located
A) posterior to the descending aorta. B) anterior and lateral to the descending aorta. C) lateral and posterior to the vertebral column. D) in the wall of the organ to be innervated. E) None of the answers are correct.
The deepest cells of the epidermis make up the stratum ____________
Fill in the blank(s) with correct word
A muscle cramp is most likely due to a temporary lack of:
A. actin B. myosin C. ATP D. ADP E. motor neurons