A DNA library is

A. a collection of recombinant vectors containing DNA fragments of a given organism.
B. a collection of books about clones.
C. a line of bacteria that contains a DNA fragment of interest.
D. a series of restriction enzymes that can be used to produce a variety of sizes of DNA fragments.
E. a collection of recombinant plasmids containing a particular gene from many different organisms.


A. a collection of recombinant vectors containing DNA fragments of a given organism.

Biology & Microbiology

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A protein that is temporarily associated with a biological membrane is a(n):

A. transmembrane protein. B. integral membrane protein. C. peripheral membrane protein. D. transmembrane protein and an integral membrane protein.

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Hoverflies are attracted to sweets at outdoor picnics. The reaction of humans is usually to flee because of the flies' uncanny resemblance to bees. The survival of hoverflies is enhanced by:

a. mimicry b. camouflage c. warning coloration d. chemical defenses e. display behavior

Biology & Microbiology

Which scientist(s) discovered the basis for the base-pair rule, which states that the amounts of thymine and adenine are

always equal in all DNA molecules, as are the amounts of cytosine and guanine?

a. Watson and Crick b. Beadles c. Chargaff d. Franklin e. Pauling

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The photolysis of water occurs in conjunction with photosystem I

__________________ Indicate whether the statement is true or false.

Biology & Microbiology