DNA replication is a ____ process
a. noncomplementary
b. semiconservative
c. semisynthetic
d. mutational
e. denaturation
B
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Which protist has a belt-like flagellum that runs through a groove in the middle of its cell?
a. dinoflagellates b. ciliates c. apicomplexans d. euglenoids e. trypanosomes
What feature do the carbon and nitrogen cycles have in common?
A. a large atmospheric component B. involvement in global climate change C. often a limiting nutrient D. mostly local cycling E. many microbes involved in cycling
In the early part of the twentieth century, which of the following two views about the determination of diversity was more popular?
A) Diversity increases without limit over time. B) Diversity reaches an equilibrium level, with factors adding species balanced by factors removing species.
Which aspect of the polymerase chain reaction (PCR) is mismatched with its description?
A) Taq polymerase: a DNA-replication enzyme which functions at high temperatures B) variable temperatures: the highest temperature required for double-stranded DNA separation, the lowest temperature to allow primers to anneal, and a midrange-temperature for DNA replication C) dNTPs: building blocks of DNA D) template DNA: the DNA to be copied; must be present at a high concentration for the procedure to work E) DNA primers: sequences specifically chosen to be complementary to the DNA which flanks a target gene or region of interest