The upstream region of an mRNA, acting as a riboswitch, binds a(n) ________ and results in translational blockage of the downstream protein-encoding sequence
a. antisense RNA
b. metabolite
c. peptide
d. RNAi
Answer: B
You might also like to view...
Synthesizes the lagging strand of the DNA
A. DNA ligase B. DNA primase C. Topoisomerase D. DNA polymerase I E. DNA polymerase III
In humans, the majority of a transcription unit is composed of ____
a. exons b. introns c. promoter regions d. start codons e. regulatory elements
Pelagic snails that produce a bubble raft in order to remain afloat are
a. pteropods. b. purple sea snails. c. cowries. d. littorine snails. e. abalone.
Humans and many other species rely on soil resources for survival. Which of these human actions is least likely to result in depletion or damage of soil resources?
a) introduction of species into new habitats b) removal of forest trees due to logging c) burning of fossil fuels d) overgrazing and agriculture