Proteins of the _______ family link transmembrane proteins of the tight junction to actin.
a. catenin
b. plakin
c. plectin
d. zonula occludens
Ans: d. zonula occludens
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Which of the following adaptations are LEAST likely to be found in plants which regularly experience dry, hot conditions?
A) CAM plants that grow rapidly B) small, thick leaves with stomata on the lower surface C) a thick cuticle on fleshy leaves D) large, fleshy stems with the ability to carry out photosynthesis E) plants that do not produce abscisic acid and have a short, thick taproot
Monoclonal antibodies are those that:
a. react with many different types of anti-gens. b. react with many species of bacteria within the same genus. c. are produced by the offspring of a single hybrid cell. d. can be produced from many different spe-cies of host organisms.
What transgenic animal, other than mice, has been used to model human neurodegenerative diseases?
A. monkeys B. Drosophila C. rats D. roundworms E. frogs
The information that determines what an organism will be like is stored in the ________ molecule.
Fill in the blank(s) with the appropriate word(s).