TLS Online TPP Program
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TLS Online TPP Program
#Question id: 27070
#Unit 1. Molecules and their Interaction Relevant to Biology
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: 27069
#Unit 1. Molecules and their Interaction Relevant to Biology
Choose the correct option regarding the stereochemistry of given compound
TLS Online TPP Program
#Question id: 27068
#Unit 1. Molecules and their Interaction Relevant to Biology
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: 27067
#Unit 1. Molecules and their Interaction Relevant to Biology
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: 744
#Unit 1. Molecules and their Interaction Relevant to Biology
In a DNA molecule, deoxyribonucleotides are joined into a polymer by the covalent linkage of a phosphate group. The covalent link termed as:
TLS Online TPP Program
#Question id: 745
#Unit 1. Molecules and their Interaction Relevant to Biology
The structure of RNA differs from that of DNA, as RNA contains: