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Kaplan Qbank USMLE



Author5 Posts
  #1

Amino acids that contribute at least one nitrogen or carbon to the purine ring during the biosynthesis of purine nucletides are


a.-alanine,asparagine, and lysine
b.-alanine,methionine and histidine
c.-aspartate,arginine,and histidine
d.-aspartate,glycine and glutamine
e.-glycine,serine,and tyrosine

  #2

d is the answer

Best of luck


___________________
FA is just a good revision book.It is not a "real" learning tool.

  #3

well done
likewise good luck

  #4

can someone tell me why? thanks.

  #5

http://www.indstate.edu/thcme/mwking/nucleotide-m...







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