In recombinant DNA technology, enzymes used to precisely cut DNA are called

a. DNA ligases.
b. restriction enzymes.
c. DNA polymerases.
d. RNA polymerases.
e. vectors.


B

Biology & Microbiology

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List the similarities and differences between prokaryotic and eukaryotic cells. Identify three ways that

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Vocal cords are located in the larynx

____________________ Indicate whether the statement is true or false.

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The discovery of fossils of whale intermediates suggest that whales evolved from:a

sharks. b. aquatic reptiles. c. marine invertebrates. d. a larger marine mammal. e. four-legged, land dwelling mammals.

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The cell-cell interactions mediated by the selectins, integrins, and most members of the Ig superfamily are _______ interactions in which the cytoskeletons of adjacent cells are not linked to one another.

a. nonspecific b. physiologically unimportant c. stable d. transient

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