One of the consequences of malnutrition is lack of vitamin B6 . Enzymatic reactions requiring ______________will be halted.
A. transfer of acyl groups
B. transfer of alkyl groups
C. transfer of methyl groups
D. pyridoxal phosphate
E. tetrahydrofolate
An amino acid most likely to be found in a reverse turn is:
A. glycine.
B. valine.
C leucine.
D. isoleucine.
E. methionine.
The first genome sequenced was that of X174 . This was mostly likely because X174 is a ______________.
A. simple bacteria with a small DNA genome.
B. simple bacteria with a small RNA genome.
C. phage with a small RNA genome.
D. phage with a small DNA genome.
E. noninfectious phage.
Mg2+ is a ______________for DNA polymerase, while nicotinamide adenine dinucleotide (NAD) is a _____________ for salicylate hydroxylase, which is called a(n) _____________if NAD is not bound.
A. cofactor / coenzyme / holoenzyme
B. coenzyme / cofactor / holoenzyme
C. cofactor / coenzyme / apoenzyme
D. coenzyme / cofactor / apoenzyme
E. None of these choices is correct.
A beta turn consists of ______________ amino acid(s).
A. one
B. two
C. three
D. four
E a variable number of
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