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#Question id: 27068


Isoleucine and Threonine have two chiral carbons so exists in multiple RS configuration, choose the correct option regarding the given fig.
1. a is D-threonine is (2S, 3S) threonine
2. b is L-threonine is (2R,3S) threonine
3. a is L-threonine is (2S, 3R) threonine
4. b is D-threonine is (2R,3S) threonine

#Bioorganic Chemistry and Metabolites
  1. 1 only
  2. 2 & 3
  3. 3 & 4     
  4. 1, 2, 3, & 4

Answer:- Option(s): 3


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