A(n) ________ vector contains promoters that result in high-level transcription of the gene cloned within a multicloning site.
A. phage
B. shuttle
C. expression
D. chimeric
Answer: C
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When ionic bonds are formed
1.atoms share electrons. 2.atoms either gain or lose electrons. 3.the atomic number of an atom changes. 4.isotopes are formed.
The __________ secretes aldosterone, which targets the kidney, and __________, the stress hormone. Fill in the blank(s) with the appropriate word(s)
The Reznick and Endler guppy study showed that life history traits in guppies ____.
A. evolve primarily due to migration patterns B. are unpredictable and random from a human standpoint C. change very slowly, and only in response to individual guppy needs D. are unchanged in response to the preferences of predators E. can evolve rapidly in response to the preferences of predators
Where does the energy for the Calvin cycle come from?
A. carbon dioxide B. O2 C. NADPH and ATP D. sugar