Which of the following pairs of amino acids would you predict to only participate in Van der Waals interactions in the three dimensional folding of a protein:

TLS Online TPP Program

#Question id: 18978

#Part-A Aptitude & General Biotechnology

For expression vector 

TLS Online TPP Program

#Question id: 307

#Part-A Aptitude & General Biotechnology

An ionic compound A+ B– is most likely to be formed when________

TLS Online TPP Program

#Question id: 14482

#Part-A Aptitude & General Biotechnology

In a horse race the odds in favour of four horses H1, H2, H3, H4 are 1 : 3, 1 : 4, 1 : 5; 1 : 6 respectively not more than one wins at a time. Then the chance that one of them wins is

TLS Online TPP Program

#Question id: 19876

#Part-A Aptitude & General Biotechnology

Functions perform by restriction endonuclease is__

a) Cleaving phosphodiester bond

b) Methylation on DNA to perform restriction

c) Cleaving the covalent bond

d) Modify the host DNA sequence to prevent restriction

TLS Online TPP Program

#Question id: 18851

#Part-A Aptitude & General Biotechnology

Nickel-NTA (Ni-NTA) chromatography is a popular affinity chromatography method for the purification of histidine-tagged proteins. However, SDS-PAGE of the eluted protein can show bands in addition to your target protein. How might you improve this purification step?