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#Question id: 3863


Introns in nuclear pre-mRNAs are excised by:

#Part-A Aptitude & General Biotechnology
  1. spliceosomes

  2. splicing nucleases

  3. ligases

  4. autocatalytic reactions

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TLS Online TPP Program

#Question id: 10337

#Part-B Specialized Branches in Biotechnology

In biological nitrogen fixation, the process of nitrification by organism respective bacteria A--which convert the ammonia to nitrite and B--- further converted into nitrate in the soil by their respective A and B bacteria known as;

TLS Online TPP Program

#Question id: 11204

#Part-A Aptitude & General Biotechnology

Why do Na+ ions enter the cell when voltage-gated Na+ channels are opened in neurons?

TLS Online TPP Program

#Question id: 891

#Part-B Specialized Branches in Biotechnology

The folding pathways of some proteins require two enzymes that catalyze isomerization reactions such as,

a) Peptide prolyl isomerase (PPI)  catalyzes the elimination of folding intermediates with inappropriate disulfide cross-links

b) Protein disulfide isomerase (PDI) enzyme that catalyzes the interchange, or shuffling, of disulfide bonds until the bonds of the native conformation are formed

c) Peptide prolyl cis-trans isomerase (PPI) catalyzes the interconversion of the cis and trans isomers of Proline residue peptide bonds

d) Peptide prolyl isomerase (PPI) can be a fast step in the folding of proteins that contain some Pro peptide bonds in the cis conformation

Which of the following combinations is correct about protein folding pathways?

TLS Online TPP Program

#Question id: 22917

#Part-B Specialized Branches in Biotechnology

The first transgenic plant to be produced is

TLS Online TPP Program

#Question id: 18782

#Part-A Aptitude & General Biotechnology

The concentration of a small amount antibodies 2 μg antibody/ml can be detected