Step 2 in the accompanying figure is accomplished by an influx of:
a. Ca2+
b. Na2+
c. K+
d. Na2+
e. K+
b
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Body size can be significantly altered in individuals with hormonal disorders; too much growth hormone (GH) prior to puberty causes ________
a. poor growth, and is termed pituitary dwarfism b. long, spindly limbs, a condition called Marfan's syndrome c. acromegaly, excessive growth of the hands and feet d. gigantism, a normally proportioned but very large body
Gene therapy can best be described as the ____
a. repair of a defect (mutation) in a gene b. insertion of normal genes to act in place of mutant genes c. insertion of human genes into other organisms d. cloning of genes to produce and purify therapeutically useful proteins e. mapping of all human genetic information
All members of a wolf pack help to raise the pups-sharing food, defending the pups, teaching them to hunt-even though this behavior decreases the mating potential of a given pack member. This behavior is called ________
Fill in the blank(s) with correct word
Complement factors C5b+C6+C7+C8 make up a membrane attack complex that results in ______.
A. enhanced phagocytosis B. opsonization C. cytolysis D. All of these choices are correct.