In a messenger RNA, what region of the mRNA does the 3' UTR refer to?
a. the coding region
b. the region after the stop codon
c. the region before the start codon
d. the region before the site for initiation of transcription
Answer: b. the region after the stop codon
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What are leaves that are modified structurally to bear sporangia called?
a. megaphylls b. microphylls c. sporophylls d. macrophylls
Glycolysis does not require
A. glucose. B. ATP. C. oxygen. D. NAD+. E. enzymes.
The adaptations that are most responsible for gymnosperms and angiosperms being able to live and reproduce in much drier habitats than bryophytes and plants such as club mosses are:
a. The production of spores and gemmae b. The production of seeds, spores, and fronds c. The production of vascular tissue, spores, fronds, and gemmae d. The production of pollen grains and seeds e. All of these are correct
Embryo twinning refers to ________
A) a cloning step that involves enucleation B) a cloning step that involves splitting embryos in half C) a technique used in only primate cloning D) a novel technique not yet employed by scientists E) a cloning step that involves one half of an embryo