The deactivation of NK cells due to binding of NK receptors to MHC I proteins is called

A) promoting.
B) phagocytosis.
C) licensing.
D) neutralization.


Answer: C

Biology & Microbiology

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Which of the following is a technique for rapidly replicating copies of regions of DNA?

a. cloning b. polymerase chain reaction (PCR) c. gel electrophoresis d. recombinant DNA

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In which phase of meiosis does the chromosomal alignment tke place?

A) Prophase I B) Prophase II C) Metaphase I D) Metaphase II

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A PCR was designed to clone a DNA sequence of 1.5 kb. When the products were run on an agarose gel, there was a smear of bands ranging from 1.5 kb to 6 kb. Which of the following is a reason for this result?

A) the thermocycler malfunctioned B) one of the primers did not bind C) the polymerase overran the reverse primer D) the polymerase denatured

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Genomic pattern recognition begins with identification of ____ , which are telltale sequences that identify what type of sequence it is

Fill in the blank with the appropriate word.

Biology & Microbiology