Translocation is the process whereby the __________ moves in order to place the tRNA bound to the
growing polypeptide chain in the __________ site, thereby freeing the __________ site for a new
aminoacyl-tRNA.
a. mRNA; A; P
b. ribosome; P; A
c. tRNA; P; A
d. ribosome; A; P
e. tRNA; A; P
B
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What sort of symbiosis would a mycorrhiza represent? What will be an ideal response?
The maintenance of the volume and
composition of body fluids is the primary responsibility of which system? a. integumentary b. immune c. digestive d. urinary e. circulatory
Explain the respective advantages associated with operons being inducible (e.g., the lactose operon) or
repressible (e.g., the tryptophan operon). What will be an ideal response?
You observe a 1-inch-tall plant in the woods. This plant is part of a mass of similar small plants covering an area of several square feet. It is very flexible and does not easily stand upright by itself
Upon examining the tiny, flat, leaflike structures of this plant, you see no veins. There is no evidence of seeds, but at the end of a little stalk on the tip of the plant, there is some sort of spore-bearing structure. This plant is probably a(n) A) alga. B) gymnosperm. C) bryophyte. D) angiosperm. E) fern.