Which enzyme links nucleotides into a new stand of DNA?
a. DNA ligase
b. DNA mutase
c. DNA polymerase
d. DNA primer
e. DNA replicase
ANSWER: c
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Ammonia is likely to be the primary nitrogenous waste in living conditions that include _____
A) lots of fresh water flowing across the gills of a fish B) lots of seawater, such as a bird living in a marine environment C) lots of seawater, such as a marine mammal (for example, a polar bear) D) a terrestrial environment, such as that supporting crickets E) a moist system of burrows, such as those of naked mole rats
Virtually ALL cases of tetanus occur in individuals who have failed to receive tetanus toxoid booster immunizations
Indicate whether the statement is true or false.
Which of these is generally considered a benefit of synthetic hormones?
A) effects on kidney and liver B) cardiovascular effects C) increased hostility D) mimicking estrogen
Which of the following lists correctly traces the path of a sound vibration as it moves through the ear?
A. auditory canal-tympanic membrane-malleus-incus-stapes-oval window-cochlea-cochlear nerve B. auditory canal-tympanic membrane-oval window-cochlea-malleus-incus-stapes-cochlear nerve C. auditory canal-malleus-incus-stapes-tympanic membrane-oval window-cochlea-cochlear nerve D. auditory canal-tympanic membrane-malleus-incus-stapes-cochlea-oval window-cochlear nerve E. auditory canal-malleus-incus-stapes-oval window-tympanic membrane-cochlea-cochlear nerve