Repair of damaged DNA, in some instances and mechanisms, might be viewed as a race between an endonuclease and
A) DNA ligase.
B) DNA polymerase.
C) helicase.
D) methylase.
E) primase.
D
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In general, molecules consisting only of carbon and hydrogen atoms are called ____
a. hydrocarbons b. carbohydrates c. polymers d. functional groups e. organic molecules
Four of the five answers listed below are haploid. Select the exception
a. gametophyte b. zygote c. sperm d. microspore e. gamete
Excretion is a process in which ________ is (are) removed from the body.
A. feces B. hormones C. metabolic wastes D. salt E. water
An obligate anaerobe is an organism that would die in an oxygenated environment. What could be assumed about these organisms?
A. They can’t create ATP (adenosine triphosphate). B. They must create their own energy. C. They perform only anaerobic respiration. D. They perform both aerobic and anaerobic respiration.