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TLS Online TPP Program

#Question id: 5844

In homologous genetic recombination, RecA protein is involved in:

#SCPH28 | Zoology

  1. formation of Holliday intermediates and branch migration.

  2. introduction of negative supercoils into the recombination products.

  3. nicking the two duplex DNA molecules to initiate the reaction.

  4. pairing a DNA strand from one duplex DNA molecule with sequences in another duplex, regardless of complementarity.

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TLS Online TPP Program

#Question id: 14254

#SCPH05 I Biotechnology

Hybridoma cells immobilized on surfaces of Sephadex beads are used in a packed column for production of monoclonoal antibodies (Mab). Hybridoma concentration is approximately X = 5 g/l in the bed. The flow rate of the synthetic medium and glucose concentration are Q = 2 l/h and S0 = 40 g/l, respectively. The rate constant for Mab formation is k = 1 gX/l-d. Assume that there are no diffusion limitations and glucose is the rate limiting nutrient.  Determine the height of the packed bed for 95% glucose conversion. Bed diameter is D0 = 0.2 m. Neglect the growth of the hybridomas and assume first order kinetics. 
TLS Online TPP Program

#Question id: 5039

#SCPH28 | Zoology

The process by which developing cells achieve their functional, mature identity as liver, or muscle, or nerve is called:
TLS Online TPP Program

#Question id: 19342

#SCPH28 | Zoology

Which one of the following devices is used to measure the glucose level in blood or sweat?
TLS Online TPP Program

#Question id: 10540

#SCPH05 I Biotechnology

The following statements are made regarding volatile compounds of plant;

a) secondary metabolites also fuction in defence mechanism but this is not the volatile compound

b) These volatiles can act as cues for natural enemies of the insect herbivore such as parasitic wasps

c) All plants releases green-leaf volatiles in response to mechanical damage that is a mixture of aldehydes, alcohols, and esters

d) These volatiles attracts natural enemies of the attacking insect herbivores—predators or parasites

Which one of the following options represents a combination of correct statements?
TLS Online TPP Program

#Question id: 9161

#SCPH06 I Botany

When climbing a mountain, we can observe transitions in biological communities that are analogous to the changes ________.