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TLS Online TPP Program

#Question id: 3623

To carry out a complementation test, which of the following statement is correct?

#Part-A Aptitude & General Biotechnology

  1. If the mutations are allelic then the heterozygous offspring have only mutant alleles and exhibit wild phenotype:

  2. The mutations occur at different loci, the heterozygous offspring inherit a mutant and a wild-type allele each locus

  3. If the mutations are allelic then the heterozygous offspring have only wild type alleles and exhibit a wild phenotype

  4. The mutations occur at different loci, the heterozygous offspring inherit a mutant allele only

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TLS Online TPP Program

#Question id: 10557

#Part-B Specialized Branches in Biotechnology

The attraction of water to a solid phase such as a cell wall or glass surface known as
TLS Online TPP Program

#Question id: 909

#Part-B Specialized Branches in Biotechnology

Most proteins denature at both high and low pH. At high pH, the ionization of internal tyrosines is thought to be the main destabilizing influence, whereas at low pH, the protonation of buried histidines. A titration curve for the unfolding of the enzyme ribonuclease is shown in Figure. Given the relation between the titration curves for protein unfolding and histidine protonation, which of the following conclusion can be drawn correctly?

A. The sharp transition in graph indicates a highly cooperative process; when the protein starts to unfold, it completes the process rapidly

B. The sharp transition in graph indicates a highly noncooperative process

C. Several buried histidines can ionize when the chain starts to unfold, so that when one goes, they all go together due to cooperative behaviour of protein folding

D. Buried histidine (pK of 4 in this example) becomes accessible to solvent, its pK will shift toward its normal value of 6, significantly steepening its titration curve.
TLS Online TPP Program

#Question id: 18881

#Part-A Aptitude & General Biotechnology

A compound microscope’s magnification power is independent of 
TLS Online TPP Program

#Question id: 15581

#Part-B Specialized Branches in Biotechnology

Which one of the following factors does not influence the rate of oxygen transfer in an aerobic fermentation system ?
TLS Online TPP Program

#Question id: 1606

#Part-B Specialized Branches in Biotechnology

transporter associated with antigen processing(TAP) is ,