Which of these is something that RNA polymerase can do that DNA polymerase cannot?
A. Synthesize a strand in the 5' to 3' direction.
B. Initiate strand synthesis.
C. Incorporate deoxynucleotides into a growing nucleic acid polymer.
D. Synthesize a strand complementary to a template strand.
Answer: B. Initiate strand synthesis.
Explanation: DNA polymerase cannot initiate new strands synthesis because it can only add a nucleotide onto a pre-existing 3?-OH
You might also like to view...
Consider the phylogeny (Fig. 34.15) below. Which type of data helped the most in constructing this tree?
A. fossils from the group Glomeromycetes B. morphological characters associated with fruiting bodies C. chromosome number of the different species D. molecular sequence data E. presence or absence of a continuous dikaryotic life stage
A study of ____ indicated a connection between lower melatonin levels and a greater risk of breast cancer
a. ER nurses b. college students c. high stress occupations d. night-shift nurses e. infants in high altitudes
Polymers of polysaccharides, fats, and proteins are all synthesized from monomers by
A) connecting monosaccharides together. B) the formation of disulfide bridges between monomers. C) ionic bonding of the monomers. D) the addition of water to each monomer. E) the removal of water
There are tubeworms and clams that live at the bottom of the ocean near thermal vents that do not have direct access to sunlight so they derive their energy from
A. sources not yet known. B. the sun by way of burning fossil fuels like we do with coal and oil. C. the sun, but they are deep in the dark ocean and live off dead detritus that sink to them. D. chemosynthetic bacteria.