What do restriction endonucleases do?

a. break phosphodiester bonds
b. break ester bonds
c. break glycosidic bonds
d. break peptide bonds
e. break hydrogen bonds


A

Biology & Microbiology

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DNA fingerprints, such as those first used by Alec Jeffries, reveal variations in _____ between different individuals

a. blood type b. cancer-causing mutations c. transgenes d. the locations of restriction enzyme recognition sites e. STR alleles

Biology & Microbiology

Acid precipitation can have a pH as low as 3

Indicate whether the statement is true or false.

Biology & Microbiology

What are the stinging organelles of Cnidarians called? a. Collar cells b. Nerve nets c. Nematocyst d. None of these choices

e. Mesoglea

Biology & Microbiology

Why does Dallas, Texas, have a higher yearly average temperature than Chicago, Illinois?

A) Dallas is at a higher latitude than Chicago. B) Chicago experiences more prevailing westerly winds than Dallas. C) Dallas receives more solar irradiance than Chicago. D) Dallas is closer to a large body of water, than is Chicago.

Biology & Microbiology