TLS Online TPP Program

#Question id: 5247


Which of the following is not a protein or group of proteins required for conjugation to occur?

#Microbiology
  1. The relaxosome.

  2. Pilin protein.

  3. The origin of transfer.

  4. Coupling protein.

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TLS Online TPP Program

#Question id: 27065

#Biochemistry

Determine R and S Configurations On A Fischer Projection given below 

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