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TLS Online TPP Program

#Question id: 5128

During lens formation in the Xenopus, the following statements have been proposed. Which statement is incorrect?

#SCPH01 Biochemistry

  1. Expression of Pax6 protein may constitute the competence of the surface ectoderm to respond to the optic vesicle during the late neurula stage.

  2. The optic vesicle secretes BMP and FGF family paracrine factors that induce the synthesis of the Sox transcription factors and initiate lens formation.

  3. If Pax6 is lost, whether it is in fruit flies, frogs, rats, or humans, it results in a complete loss or reduction of the eyes.

  4. If Pax6 is lost, still lens formation takes place in presence of Sox2 and L-maf.

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TLS Online TPP Program

#Question id: 7311

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

According to the ABC model of flower development in Arabidopsis, three classes of organ identity genes— designated A, B, and C— are required to specify the identity of floral organs in each whorl of a flower. If wild type Arabidopsis were transformed with a chimeric gene composed of a C class promoter fused to a B class coding sequence, which of the following arrangements   (outer to inner) would be predicted?
TLS Online TPP Program

#Question id: 5569

#SCPH28 | Zoology

What makes sexually reproduced offspring genetically different from their parents?
TLS Online TPP Program

#Question id: 5426

#SCPH28 | Zoology

Which of the following is incorrect regard polygenic inheritance?
TLS Online TPP Program

#Question id: 19754

#SCPH05 I Biotechnology

Which factor is not responsible for the formation of ionicbond?
TLS Online TPP Program

#Question id: 14262

#SCPH05 I Biotechnology

The BOD5 value of a waste-water feed stream to an activated-sludge unit is S0 = 300 mg/l, and the effluent is desired to be S = 30 mg/l. The feed flow rate is F = 2× 10^7 l/day. For the recycle ratio of α = 0.5 and a steady-state biomass concentration of X = 5 g/l, Use the following kinetic parameters:

 
calculate Required reactor volume (V). 
_______________10^6