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TLS Online TPP Program
#Question id: 27066
#Biochemistry
Determine R and S Configurations On A Fischer Projection given below
TLS Online TPP Program
#Question id: 27067
#Biochemistry
Choose the correct statement regarding the stereochemistry of amino acid
1. 16 amino acid except (Thr, Ile, Cys, Gly) L Fischer projection is equal to S and D is equal to R configuration
2. Thr, Ile is special case because of two chiral center exist in L – Ile/Thr – 2S,3R and D-Ile/Thr–2R,3S configuration
3. Cys exiest in L- Cys – R & D- Cys – S configuration
4. Gly is optically inactive
TLS Online TPP Program
#Question id: 27068
#Biochemistry
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
TLS Online TPP Program
#Question id: 27069
#Biochemistry
Choose the correct option regarding the stereochemistry of given compound
TLS Online TPP Program
#Question id: 27070
#Biochemistry
Which of the following statements is correct regarding the stereochemistry of Thr, Ile
1. Thr, Ile is special case because of two chiral center exist in L-Ile in 2R,3S and L-Thr in 2R,3S configuration
2. Thr, Ile is special case because of two chiral center exist in D-Ile in 2R,3S and D-Thr in 2R,3S configuration
3. Thr, Ile is special case because of two chiral center exist in L–Ile in 2S,3R and L–Thr in 2S,3R
4. Thr, Ile is special case because of two chiral center exist in D–Ile in 2S,3R and D–Thr in 2S,3R
TLS Online TPP Program
#Question id: 1232
#Biochemistry
Which of the following mutations might confer a competitive advantage to an athlete by raising his or her hematocrit?
a. excess production of erythropoietin
b. decreased production of erythropoietin
c. EpoR that cannot bind STAT5
d. EpoR that cannot bind SHP1
e. EpoR that cannot bind JAK2