Suppose a new species of bacterium is discovered. It contains a form of DNA pol III that can add new nucleotides to either the 5' end or the 3' end of an existing strand. All other properties of the enzyme remain unchanged. How would DNA replication in these bacteria differ from normal replication?
A. DNA gyrase would no longer be required for replication.
B. Both new strands could be synthesized continuously like the leading strand.
C. The same polymerase molecule could synthesize both strands at the same time.
D. Helicase would no longer be required for replication.
Answer: B
You might also like to view...
During the citric acid cycle, the production of CO2 is a(n) _____ reaction coupled to the production of ____________
A. oxidation; NADH B. oxidation; ATP C. reduction;, NADH D. reduction; ATP E. oxidation; GTP
As muscles contract, ________
a. actin heads bind to myosin filaments and slide them toward the middle of the sarcomere b. myosin heads bind to actin filaments and slide them toward the middle of the sarcomere c. myosin filaments change position d. filaments change length
Although carbon dioxide contains carbon, it is not considered an "organic" compound because ____.
A. it is not found in the earth's crust B. it is not present in living cells C. the carbon atom is not bonded to at least one hydrogen atom D. the carbons are not in chains or rings E. it is too small
Competition shapes communities because there are usually limited
A. species. B. interactions. C. resources. D. nutrients.