TLS Online TPP Program

#Question id: 27094


Which of the following is incorrect regarding the βαβ Motif

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. Almost all the proteins containing parallel beta sheets have this motif
  2. helix is found above the plane of the beta sheets.
  3. Helix is found below or same the plane of the beta sheets.
  4. beta sheets are found in same plane
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TLS Online TPP Program

#Question id: 19887

#Unit 13. Methods in Biology

Paul Berg’s gene splicing experiment created the first rDNA molecules which was a

TLS Online TPP Program

#Question id: 19888

#Unit 13. Methods in Biology

There are some typical enzyme used in the manipulation of nucleic acid;

                 

                 ENZYMES

 

USE IN NUCLEIC ACID MANIPULATION

 

A) klenow

 

i) DNA-dependent RNA polymerase

 

B) T4 DNA polymerase

 

ii) Single-strand specific nuclease

 

C) Taq DNA polymerase

 

iii) DNA pol I lacks 5’→ 3’ exonuclease activity

 

D) T7 RNA polymerase

 

iv) Thermostable DNA polymerase used in PCR

 

E) S1 nuclease

 

v) Lack  5’→ 3’ exonuclease activity

TLS Online TPP Program

#Question id: 19917

#Unit 13. Methods in Biology

Antigen-Antibody interactions are__

TLS Online TPP Program

#Question id: 19918

#Unit 13. Methods in Biology

Affinity constant (Ka) in between the antigen-antibody interaction can be analysed by which method?

TLS Online TPP Program

#Question id: 19919

#Unit 13. Methods in Biology

Scatchard plots are based on repeated equilibrium dialyses with a constant concentration of antibody and varying concentration of ligand. Which plots correctly verify the Scatchard equation that determined by equilibrium dialysis?

TLS Online TPP Program

#Question id: 19920

#Unit 13. Methods in Biology

Ag-Ab reactions are highly specific, in some cases antibody elicited by one antigen and with unrelated antigen also, Such two different antigens share an identical or very similar epitope then it consider