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TLS Online TPP Program

#Question id: 3868

The sigma factor of E. coli RNA polymerase: 

#SCPH28 | Zoology

  1. associates with the promoter before binding core enzyme.

  2. combines with the core enzyme to confer specific binding to a promoter.

  3. is inseparable from the core enzyme.

  4. is required for termination of an RNA chain.

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TLS Online TPP Program

#Question id: 6992

#SCPH28 | Zoology

Epimorphosis is regeneration through:
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?
TLS Online TPP Program

#Question id: 752

#SCPH05 I Biotechnology

The A260/A280 ratio of a double-stranded DNA sample can be used to assess its purity. The value for the pure DNA is ----------------
TLS Online TPP Program

#Question id: 22950

#SCPH28 | Zoology

APETALA1 belongs to the transcription factor family:
TLS Online TPP Program

#Question id: 14260

#SCPH05 I Biotechnology

C. roseus cells immobilized in Ca-alginate beads of diameter 0.5 mm are used for production of indole alkaloids (IA) in a fluidized-bed bioreactor. The rate limiting nutrient is glucose and no intraparticle diffusion limitations exist. Use the following data: Flow rate of the feed: Q = 1 l/h, Glucose in the feed: So = 30 g/l, Plant Cell Concentration: X = 6 g/l reac. The rate constant for IA formation: k = 5 d-1 (g/l)^-1 Ks = 0.4 g/l, Column diameter: Do = 0.15 m. Growth is negligible and Monod kinetics is valid. For 95% glucose conversion determine height of the column