Transcription factors attach to
A) DNA.
B) the nuclear envelope.
C) plasma membrane receptors.
D) mRNA.
Answer: A
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Molecular data suggests that land plants evolved from
A. rhodophyta. B. charophytes. C. dinoflagellates. D. the water molds. E. ciliates.
According to the endosymbiont hypothesis, eukaryotic cells evolved as a consequence of ____.
A. the cyclic pathway of photosynthesis B. anaerobic respiration C. cell division D. mutual dependency E. chemosynthesis
What part of the DNA replication process would be most directly affected if a strain of bacteria lacking primase were used to make the cell extracts?
(a) initiation of DNA synthesis (b) Okazaki fragment synthesis (c) leading-strand elongation (d) lagging-strand completion
Select the line of defense that displays immunologic memory.
A. First line defenses B. Second line defenses C. Third line defenses D. Nonspecific line defenses