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TLS Online TPP Program

#Question id: 18845

The action of EDTA in EDTA-lysozyme treatment in bacterial DNA extraction is

#Unit 13. Methods in Biology
  1. removes Mg+ ions essential for maintenance of bacterial cell wall structure 
  2. inhibits degradation of DNA by cellular enzymes 
  3. removes outer lipopolysaccharide layer of Gram negative bacteria 
  4. all of these
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TLS Online TPP Program

#Question id: 27505

#Unit 2. Cellular Organization

Which of the amino acid residue are found in active site of topoisomerases
TLS Online TPP Program

#Question id: 27506

#Unit 2. Cellular Organization

A DNA with a initial LK no = 100 is change to 95
TLS Online TPP Program

#Question id: 27507

#Unit 2. Cellular Organization

A 1000 bp B DNA is converted into Z form
TLS Online TPP Program

#Question id: 27508

#Unit 2. Cellular Organization

Choose the incorrect statement regarding Gyrases
TLS Online TPP Program

#Question id: 27509

#Unit 2. Cellular Organization

Which of the following Protein facilitate nucleosome assembly over the covalently close circular DNA (cccDNA)
TLS Online TPP Program

#Question id: 27510

#Unit 2. Cellular Organization

As the time passes during the nucleosome assembly then, which of the following fig. is correctly representing the different state of circular DNA