An mRNA molecule has a cap attached to its 5’ end and a poly-A tail attached to its 3’ end
a. True
b. False
True
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When fats are broken down as energy sources, their components enter ____
a. glycolysis b. the Krebs cycle c. electron transport d. glycolysis and the Krebs cycle e. glycolysis and electron transport
Geological evidence indicates that two landmasses, separated by a deep ocean channel, have been moving apart since 45 million years ago. You are studying a group of organisms that has widespread populations on both of the landmasses. Which is the most
likely hypothesis for the group's evolutionary history? A) The group's ancestors were definitely present on the original landmass. B) The group's ancestors cannot have been present on the original landmass. C) If the group's ancestors could not move across the open ocean, it is very likely that they were present on the original landmass. D) The group's ancestors must have independently colonized each of the landmasses from a third location within the past 45 million years.
Animals that participate in the life cycles of pathogens and transmit pathogens from host to host are
A. aerosols. B. fomites. C. mechanical vectors. D. droplet nuclei. E. biological vectors.
To study an organism's transcriptome by microarray, ________ is hybridized onto DNA silica chips containing gene sequences that are ________ to the sequence
a. cDNA / complementary b. cDNA / identical c. mRNA / complementary d. mRNA / identical