The energy to form the new bond when a nucleotide is added to a growing DNA strand is provided
primarily by ____.
a. unwinding of the DNA double helix
b. hydrolysis of pyrophosphate
c. breaking hydrogen bonds between base pairs
d. DNA polymerase
e. forming hydrogen bonds between base pairs
B
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What are the two main features of prokaryotic binary fission?
What will be an ideal response?
The evolutionary ancestors of mitochondria are believed to have been ancient
a. Archaea. b. cyanobacteria. c. proteobacteria. d. green bacteria. e. Gram-positive bacteria.
When the body's defenses can't respond quickly enough to prevent a pathogen's activities from
interfering with normal function, ____ develops. a. infection b. disease c. incursion d. invasion e. virulence
Uptake of blood glucose by liver cells is stimulated by
A) ADH. B) prolactin. C) parathyroid hormone. D) glucagon. E) insulin.