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TLS Online TPP Program

#Question id: 7310

Which statement best describes the mechanism for circadian rhythm?

#I Life Science/ Life Sciences Group – I-V
  1. There is an alternation between enhanced and inhibited expression of clock genes.
  2. Clock genes inhibit gene expression of positive elements.
  3. Clock genes inhibit expression of negative elements.
  4. The time-keeping mechanism depends only on the breakdown of negative elements.
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TLS Online TPP Program

#Question id: 10790

#SCPH05 I Biotechnology

chalcone synthase (CHS) involved in biosynthesis of phenolic compound in plants. Following are some statements regarding the action of CHS;

 a) Chalcone synthase catalyzes the conversion of p-Coumaroyl-CoA into Chalcones

 b) Substrate for Chalcone synthase is chalcone

 c) CHS activity increased by environmental factors, such as light, and fungal infection

 d) Chalcone synthase is enzyme in flavonoid biosynthesis catalyzes stepwise condensation into p-Coumaric acid by using Malonyl-CoA molecules

 Which of the following combinations of above statement is true?
TLS Online TPP Program

#Question id: 18591

#SCPH06 I Botany

First green plants and fungi appeared on the land during which period?
TLS Online TPP Program

#Question id: 12931

#SCPH28 | Zoology

Choose the incorrect statement about the Genome library.
TLS Online TPP Program

#Question id: 19551

#SCPH05 I Biotechnology

Action of caustic soda on aluminium hydroxide gives a compound with formula.
TLS Online TPP Program

#Question id: 16090

#SCPH28 | Zoology

Which of the following is heat-dissipating mechanism?