TLS Online TPP Program

#Question id: 891


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?

#Part-A Aptitude & General Biotechnology
  1. B and C     

  2. ONLY B

  3. B, C and D           

  4. A, B and D

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TLS Online TPP Program

#Question id: 10298

#Part-B Specialized Branches in Biotechnology

Wernicke-Korsakoff syndrome is more common among people with alcoholism than in the general population, The syndrome can be exacerbated by a mutation in the gene for;

TLS Online TPP Program

#Question id: 10333

#Part-B Specialized Branches in Biotechnology

Four elements, oxygen, carbon, and hydrogen and nitrogen are the major components of most organic compounds, which of the following elements are more abundant in plants ?

TLS Online TPP Program

#Question id: 10334

#Part-B Specialized Branches in Biotechnology

N2 combines with hydrogen to form ammonia under elevated temperature (about 200°C) and high pressure (about 200 atmospheres) and in the presence of a metal catalyst (usually iron). The extreme conditions are required to overcome the high activation energy of the reaction. This nitrogen fixation reaction, called

TLS Online TPP Program

#Question id: 10335

#Part-B Specialized Branches in Biotechnology

plants can store high levels of nitrate, and they can translocate it from tissue to tissue without deleterious effect. Yet if livestock or humans consume plant material that is high in nitrate, they may suffer with,

TLS Online TPP Program

#Question id: 10336

#Part-B Specialized Branches in Biotechnology

methemoglobinemia, a disease, What will cause inside the human body?

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;