Which of the following is essential in PCR?

A) DNA polymerase
B) antisense RNAs
C) reverse transcriptase
D) DNA primers
E) both DNA primers and DNA polymerase


E
Bloom's Taxonomy: Comprehension
Section: Techniques of Recombinant DNA Technology
Learning Outcome: 8.12

Biology & Microbiology

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When e-cadherin expression ___ this increases invasiveness of tumor cells.

a. increased b. decreased c. stays the same d. none of the above

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Which of the following is an example of hydrogen bonding?

A) The bond between O of one water molecule and H of a separate water molecule B) The bond between O of one water molecule and O of a separate water molecule C) The bond between H of one water molecule and H of a separate water molecule D) The bond between the H of a water molecule and H of a hydrogen molecule E) The bond between O and H in a single molecule of water

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Which of the following is NOT true of DNA-binding proteins?

a. Many are dimers that combine with two sites on the DNA. b. Regulatory proteins often bind inverted repeats on DNA. c. A leucine zipper is a common domain to maintain proper conformation. d. Most bind to DNA in a nonspecific manner.

Biology & Microbiology