Which component of the complex described enters the exit tunnel in the large subunit of the ribosome?
A) tRNA with attached lysine (#1)
B) tRNA with polypeptide (#2)
C) tRNA that no longer has attached amino acid
D) newly formed polypeptide
E) initiation and elongation factors
Answer: D
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What cytoskeletal protein is phosphorylated by the M cyclin-CDK complex?
A. microfilaments B. microtubules C. intermediate filaments D. All of the above are correct.
The combination of all the genes present in the human genome and those present in the trillions of microbes living in and on adults is known as the human ________.
Fill in the blank(s) with the appropriate word(s).
The process by which photosynthetic organisms use light energy for ATP production is known as
A) photorespiration. B) photosynthesis. C) phototaxis. D) photophosphorylation. E) photoligase
Divergence time estimates based on molecular clocks are
A) best interpreted with caution, since they depend on assumptions that are difficult to test. B) likely to be correct regardless of the genes used or the groups of organisms. C) more reliable than divergence dates that are based on analysis of the fossil record.