Which of the following is not a modification to the mRNA?
A) Intron removal
B) Promoter binding
C) End capping
D) Exon splicing
B
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Which of the following glands has a neurosecretory component as well as a component that is not
under direct neural control?
a. the hypothalamus b. the pineal gland c. the adrenal gland d. the pituitary gland e. the parathyroid gland
How does the lipopolysaccharide from Neisseria differ from other Gram-negative bacteria?
A. it activates B cells B. It lacks endotoxin activity C. It is formed of a longer chain of polysaccharides D. it is formed of a shorter chain of polysaccharides
The idea that entire populations of species change over time to become better adapted to their environments is called _________.
Fill in the blank(s) with the appropriate word(s).
Membrane lipids are capable of many different types of movement. Which of these does not occur spontaneously in biological membranes?
(a) switching between lipid layers (b) lateral movement (c) rotation (d) flexing of hydrocarbon chains