A cytotoxic T cell (CTL) differs from a natural killer cell in that the CTL is _______ specific and _________ memory cells.
A. less/produces
B. less/does not produce
C. more/produces
D. more/does not produce
Answer: D. more/does not produce
You might also like to view...
A trait that is adaptive in one context and later turns out to have adaptive value in a rather different
context is called
a. paedomorphosis. b. anagenesis. c. cladogenesis. d. exaptation. e. endemic.
What bathygraphic feature is sometimes thought to be created by turbidity currents in the ocean?
a. Abyssal plains b. Sea mounts c. Submarine canyons d. Ocean basins
One characteristic of New World monkeys that separates them from Old World monkeys is:
a. the presence of a prehensile tail. b. their quadrupedal locomotion. c. their fully opposable thumb. d. the downward orientation of their nostrils. e. their bipedal locomotion.
The sequencing and analysis of an organism's genetic information is called
A. protein synthesis. B. gene therapy. C. genomics. D. northern blotting. E. PCR.