What is the probability of rolling one six-sided die and obtaining a 1 or a 2?
What will be an ideal response?
1/6 + 1/6 = 2/6 = 1/3
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Similar gill pouches in embryos of a chick, human, and cat are an example of _____
A) structural homology B) developmental homology C) genetic homology D) the inheritance of acquired characters
An enzyme that has been isolated from retroviruses and is used to generate cDNA is
A. transverse ligase. B. reverse transcriptase. C. reverse endonuclease. D. recombinant RNase. E. RNA polymerase.
If a replication fork stalls at a lesion the usual first response is:
A. strand invasion. B. branch migration. C. fork regression. D. formation of a Holliday intermediate. E. initiation of gap repair.
The nontranscribed region of DNA to which RNA polymerase binds to initiate transcription is called the
A. operon. B. promoter. C. operator. D. intron. E. exon.