Correct order of Step for X-chromosome inactivation is 

a. Xic generate xist RNA 

b. xist RNA wrapped over X chromosome 

c. MacroH2A recruited and xist RNA removed 

d. wrapped xist invites PRC2/1 complex

e. PRC2/1 complex  leads to H2AK119ub1 H3K27me3 H4K20me1

TLS Online TPP Program

#Question id: 15560

#Unit 13. Advances in Biotechnology

Nearly all of the genetic improvements to industrially important antibiotic-producing strains have been achieved by the use of 

TLS Online TPP Program

#Question id: 15561

#Unit 13. Advances in Biotechnology

Which mechanism is helpful in secondary metabolite production

1. ppGpp secretion

2. Autoinducer

3. Nutrient limitation

4. Senescence genes

Which combination is incorrect  from the following.

TLS Online TPP Program

#Question id: 15562

#Unit 13. Advances in Biotechnology

Deletion of which gene not only was accompanied by the abolition of antibiotic formation but also severely impaired growth on agar media.

TLS Online TPP Program

#Question id: 15602

#Unit 13. Advances in Biotechnology

The antibiotic erythromycin, the immunosuppressive drug FK506, and the cholesterol-lowering drug lovastatin all belong to which class.

TLS Online TPP Program

#Question id: 15603

#Unit 13. Advances in Biotechnology

Novel antibiotic can be made by

TLS Online TPP Program

#Question id: 15604

#Unit 13. Advances in Biotechnology

The bacteria which cause septicaemia are fast becoming resistant to the antibiotics used for controlling them. Which one of the following explanations fits best?