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TLS Online TPP Program

#Question id: 650

On the basis of hypothetical binding curve given below, which of the following statement is INCORRECT

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. Ɵ Theta represents the fraction of binding sites occupied by ligand, the concentration of ligand at which half the binding sites are occupied

  2. A hypothetical binding curve for a ligand L. The [L] at which half of the available ligand binding sites are occupied is equivalent to 1/Ka, or Kd.

  3. The curve has a horizontal asymptote at Ɵ Theta = 1 and a vertical asymptote at [L] = -1/Kd.

  4. Ɵ Theta is analogous to Vmax for Michaelis- Menton enzymes.

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TLS Online TPP Program

#Question id: 26407

#Unit 3. Fundamental Processes

Choose the correct regarding DNA Pol a/ primase and DNA Pold

a. They primarily act on the lagging strand

b. They primarily act on the leyding strand

c. They are only recruited after DNA unwinding

d. They are only recruited before DNA unwinding
TLS Online TPP Program

#Question id: 26408

#Unit 3. Fundamental Processes

DNA Polymerase enzymes and their functions are given Match them correctly 

 Polymerase Function
 a. DNA polymerase α/primase i- elongates the lagging strand
 b. DNA polymerase ϵ ii- elongates the leading strand
 c. DNA polymerase δ iii- initiates the synthesis of new strands 
TLS Online TPP Program

#Question id: 26409

#Unit 3. Fundamental Processes

DNA polymerase α has unusual properties because it has the ability to initiate a new strand, so Choose which of the following are true regarding DNA polymerase α

a. It has dual capacity to prime and extend chains 

b. It is used to initiate both the leading and lagging strands

c. It has both DNA polymerase as well as RNA polymerase activity

d. It also help to synthetised iDNA
TLS Online TPP Program

#Question id: 26410

#Unit 3. Fundamental Processes

iDNA is synthesized by which DNA polymerase
TLS Online TPP Program

#Question id: 26411

#Unit 3. Fundamental Processes

In the mammalian system which of the following is responsible for the removal of RNA primers of Okazaki fragments
TLS Online TPP Program

#Question id: 26412

#Unit 3. Fundamental Processes

Which of the following is incorrectly matched with their function in E.coli and eukaryotes

 Function E . coli Eukaryotes
 1. Helicase Dna B MCM complex 
 2. Loading helicase / primase Dna C Cdc6
 3. Single strand maintenance SSB RPA
 4. Sliding clamp β PCNA
 5. RNA removal FEN 1 Pol 1