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TLS Online TPP Program

#Question id: 7310

Which statement best describes the mechanism for circadian rhythm?

#SCPH28 | Zoology
  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: 14198

#SCPH05 I Biotechnology

which of the following do not come under continuous filtration?
TLS Online TPP Program

#Question id: 15713

#SCPH01 Biochemistry

A relatively ______ concentration of auxin favours cell proliferation and root differentiation while _______levels of cytokinin promote bud differentiation.
TLS Online TPP Program

#Question id: 14509

#SCPH01 Biochemistry

Aishwarya studies either computer science or mathematics everyday. If she studies computer science on a day, then the probability that she studies mathematics the next day is 0.6. If she studies mathematics on a day, then the probability that she studies computer science the next day is 0.4. Given that Aishwarya studies computer science on Monday, what is the probability that she studies computer science on Wednesday ?
TLS Online TPP Program

#Question id: 15585

#SCPH05 I Biotechnology

A stirrer has a power number (Np) 10. If the stirrer speed (N) is 1 s-1 , its diameter D= 1 m and the density of the medium is 1000 kg/m3, the ungassed power input (P) in watts is
TLS Online TPP Program

#Question id: 9181

#SCPH28 | Zoology

Turnover of water in temperate lakes during the spring and fall is caused by which of the following?