TLS Online TPP Program

#Question id: 665


Which statement is not true about the peptide bond?

#SCPH28 | Zoology
  1. The peptide bond has partial double-bond character.

  2. The peptide bond is longer than the typical carbon-nitrogen bond.

  3. Rotation is restricted about the peptide bond.

  4. The carbonyl oxygen and the amide hydrogen are most often in a trans configuration with respect to one another.

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TLS Online TPP Program

#Question id: 10413

#SCPH06 I Botany

Following are certain statements are related to the effect of red and far-red light;
a) under a dense canopy much of the red light is absorbed by plant pigments, resulting in transmittance of mostly far-red light
b) Pr (red) has highest photon flux at 680 nm while Pfr (far-red) has highest photon flux at 730nm
c) Pfr far-red light–absorbing form, which is considered to be the physiologically active form of phytochrome
d) R:FR ratio is strongly affected by the presence of a canopy because chlorophyll absorbs far-red but not red light
Which one of the combinations of above statements is incorrect?

TLS Online TPP Program

#Question id: 4314

#SCPH01 Biochemistry

A researcher introduces double-stranded RNA into a culture of mammalian cells and can identify its location or that of its smaller subsections experimentally, using a fluorescent probe. Some time later, she finds that the introduced strand separates into single-stranded RNAs, one of which is degraded. What does this enable the remaining strand to do?

TLS Online TPP Program

#Question id: 847

#SCPH01 Biochemistry

A proposed pathway for the action of E.coli chaperonins  are groEL and groES.groEL exist in trans and cis structure transferring with its bound ATP now become the cis ring once the groES  bound to it ATP hydrolysis takes place and improperly folded protein get properly folded, total number of  ATP molecules are required to per folding cycle;

TLS Online TPP Program

#Question id: 664

#SCPH06 I Botany

Which is evidence that structures for proteins determined by X-ray crystallography represent the structures in solution?

TLS Online TPP Program

#Question id: 5564

#I Life Science/ Life Sciences Group – I-V

At the moment of sperm penetration, human eggs ________.