During the Southern blot technique, the cut DNA in the gel is ____________________ to single strands to enable a
labeled probe to bind to complementary sequences of interest in the fragments Fill in the blank(s) with the appropriate word(s).
denatured
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Long-day plants flower only when hours of darkness are ________
a. equal to hours of light b. decreasing c. less than a critical value for the species d. greater than a critical value for the species
The two erythrocyte proteins, glycophorin and band 3, are examples of
a. peripheral proteins. b. transmembrane proteins. c. cytoskeletal proteins. d. ?-barrel proteins.
Virulence determinants of Helicobacter pylori include which of the following?
A. Motility B. Urease enzyme C. Adhesions D. all of the above are correct
A gene mutation ______________.
A. is a temporary change in the nucleotide sequence of DNA B. may be caused by environmental agents C. always arises spontaneously D. occurs only in eukaryotes E. is always damaging to the organism