What type (or types) of reactions can a ribozyme catalyze?
a. protein synthesis, but only with other proteins to assist in the process (like in a ribosome)
b. protein synthesis in the absence of other proteins
c. RNA splicing
d. protein synthesis, but only with other proteins to assist in the process (like in a ribosome)
and RNA splicing
e. protein synthesis in the absence of other proteins and RNA splicing
E
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ADH is released into the blood by the
A) liver. B) pituitary gland. C) kidney. D) small intestine.
Which of the following is/are TRUE regarding "non-REM sleep"?
a. energy consumption is reduced during non-REM sleep b. it consists of four stages (stage 1 ~ 4) c. EEG rhythms during non-REM sleep exhibit delta waves, theta waves, spindles, and K complexes d. all of the above
Nauplius, a unique kind of larva, is characteristic of
A. crustaceans. B. mites. C. horseshoe crabs. D. insects. E. chelicerates.
Which is false about nightmares?
-nightmares are more prevalent in childhood -the prevalence in nightmares in children is 5 to 30 percent -in adults, the prevalence of one or more nightmares per month ranged from 8 to 30 percent -two to 5 percent of young adults and 1 to 2 percent of older adults report having such nightmares "often or always"