The short structures indicated by “A” in the figure
illustrating a step in PCR are
a. template DNAs.
b DNA polymerases.
c. primers.
d. RFLPs.
e. restriction enzymes.
Answer: c
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Dissimilatory iron-oxidation is a relatively new metabolism and is restricted to one unusual phylum of bacteria
Indicate whether the statement is true or false.
The process by which a cell uses ATP to enclose a substance in its membrane, by forming a vacuole and engulfing it, is called ________.
A. endocytosis B. facilitated diffusion C. diffusion D. active transport E. osmosis
Water has very special properties that not all chemicals share. Which of the following is not a property of water?
A) is nonpolar B) prevents wide temperature fluctuations C) requires a lot of energy to evaporate it D) interacts with lots of different substances
The ability to maintain an upright position is due to ________ muscle contractions
Fill in the blank(s) with correct word