TLS Online TPP Program

#Question id: 4322


If a particular operon encodes enzymes for making an essential amino acid and is regulated like the trp operon, then

#SCPH01 Biochemistry
  1. the amino acid inactivates the repressor.

  2. the repressor is active in the absence of the amino acid.

  3. the amino acid acts as a corepressor.

  4. the amino acid turns on transcription of the operon.

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TLS Online TPP Program

#Question id: 9227

#SCPH28 | Zoology

A land developer and several ecologists are discussing how a parcel of private land should be developed with housing while saving 20 hectares as natural habitat. The land developer suggests that the 20 hectares be divided into 20 separate 1-hectare areas, spread out across the area. The ecologists suggest that it would be better to have one intact parcel of 20 hectares on one side of the larger area. What is the significance of these different arrangements of the 20 hectares?

TLS Online TPP Program

#Question id: 10346

#SCPH05 I Biotechnology

Nitrite reductase will convert nitrite to ammonium. There are two types of nitrite reductase characteristics given below;

a) Both nitrite reductase consist of a single 63kD polypeptide

b) In leaf chloroplasts and root plastids contain different forms of the nitrite reductase enzyme

c) In shoot nitrite reductase directly dependent on the light reaction by the ferredoxin, it activates nitrite reductase in choloroplast

d) NADPH in the roots is provided by pentose phosphate pathway, it also activate nitrite reductase in the plastids

Which of the correct statement about nitrite reductase characteristics?

TLS Online TPP Program

#Question id: 4167

#SCPH01 Biochemistry

Which statement is false concerning ribosomes and their components?

TLS Online TPP Program

#Question id: 9193

#SCPH28 | Zoology

Which of the following best describes the consequences of White-band disease in Caribbean coral reefs?

TLS Online TPP Program

#Question id: 17196

#SCPH28 | Zoology

What happens when the stressor remains during the GAS?