At which site on the DNA of a gene does RNA polymerase release its newly made RNA?
A. stop codon
B. promoter
C. terminator
D. TATA box
E. poly-A tail
Ans: C. terminator
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Which process listed below does NOT require homologous recombination to maintain the new genetic material in the recipient cell?
A) conjugation of an F+ plasmid B) gene transfer through a genetic transfer agent C) transduction by a dsDNA phage Mu D) transformation of a linear piece of DNA
Which of the following statements does not describe non-associative learning?
A. Learning occurs in the absence of a particular outcome, such as reward or punishment. B. Habituation is an example of nonassociative learning that results in a reduction or elimination of a behavioral response after repeated presentation of the stimulus. C. Sensitization is a form of non-associative learning that results from presenting a strong or novel stimulus first so that the response to another stimulus is enhanced. D. Conditioning occurs when an animal learns to link or associate two events.
What is the effect of ionizing radiation on DNA?
a. faster replication b. the formation of nucleotide dimers c. kinks in the DNA molecule d. breaks in the DNA molecule e. base pair mismatching
Translation begins when the DNA in a chromosome unwinds and one strand is used as a template to make a pre-mRNA
molecule. a. True b. False