Where does tRNA #2 move to after this bonding of lysine to the polypeptide?
A) A site
B) P site
C) E site
D) exit tunnel
E) directly to the cytosol
Answer: C
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Which of these characteristics is NOT found (or only rarely found) in the amphibians but is developed in reptiles?
a) aquatic larvae b) eggs with gelatinous covering c) internal fertilization d) thin, moist skin e) small, inefficient lungs
It is a cool winter evening, and you are feeling a little chilled. To warm yourself up you sip some hot tea. As you swallow, you can feel the tea warm your mouth and throat. The drink is warming you up by the process of
A) convection. B) induction. C) conduction. D) radiation.
Why are "fortified" foods more likely to spoil than are unfortified foods?
A) The added vitamins and minerals can promote microbial growth. B) The foods are fortified by the addition of vitamin-producing microbes. C) Every step of modification or manipulation of food increases the chance for contamination. D) Vitamins are frequently contaminated by the microbes that produced them. E) The vitamins require a neutral pH environment, which is suitable for many microbes.
In descriptions of synapse organization, the __________ cell is the transmitting neuron and the __________ is the neuron, muscle, or gland cell that receives the signal.
A) postsynaptic; presynaptic B) None of the listed responses is correct. C) producer; consumer D) presynaptic; postsynaptic E) active; passive