Which of the following statements regarding the structure of DNA is false?

A) The DNA molecule has a uniform diameter.
B) In a DNA molecule, adenine bonds to thymine and guanine to cytosine.
C) Watson and Crick received a Nobel Prize for their description of the structure of DNA.
D) The sequence of nucleotides along the length of a single DNA strand is restricted by the base-pairing rules.


Answer: D

Biology & Microbiology

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Complete the following sentence. An exon is _______________________

A. a protein that is clipped out post- translationally B. RNA that is removed during the processing of an RNA molecule and remains inside the nucleus C. part of an intact, mature mRNA that leaves the nucleus D. a transfer RNA that binds to the codon E. a series of amino acids at the end of a new polypeptide that directs transcription to the ER

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The codon GGU codes for which amino acid?

a. valine (Val) b. arginine (Arg) c. glycine (Gly) d. serine (Ser)

Biology & Microbiology

All of the following could find a location in or on human body tissues suitable for growth except ________.

A. anaerobes B. facultative anaerobes C. mesophiles D. psychrophiles E. capnophiles

Biology & Microbiology

Biomining takes advantage of prokaryotes ability to ________ metals.

A. reduce B. reduce the solubility of C. oxidize D. directly solubilize E. bioaccumulate

Biology & Microbiology