To begin transcription, eukaryotic RNA polymerase recognizes nucleotide sequences in what region of the DNA?
a. promoter region
b. initiator region
c. replication origin
d. terminator region
e. G-C-rich region
Ans: a. promoter region
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Axonemal microtubules are
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The stroma is ________.
a) a collection of pigment and protein molecules that absorbs solar energy b) the central, semi-fluid compartment of the chloroplast c) the innermost portion of the mitochondria d) the portion of the enzyme to which the activator molecule binds