TLS Online TPP Program

#Question id: 2615


What are the effects shown in trp operon if we fused regulatory region of lac with structural genes of trp; which one is incorrect,

#SCPH28 | Zoology
  1. Lactose high- block trp synthesis

  2. Lactose & glucose both are available- Basal level

  3. Lactose +, Glucose -, activated level

  4. Lactose-, Glucose+, leaky

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TLS Online TPP Program

#Question id: 10728

#SCPH28 | Zoology

Following table shows the number of individuals of different species in two communities, X and Y. Use Jaccard index determine the degree of similarity between X and Y community? 

     

TLS Online TPP Program

#Question id: 15871

#SCPH05 I Biotechnology

Various sterilization techniques used in plant tissue culture work;

           Sterilization technique

 

          Materials sterilized

     A) Dry heat

i) Media, culture vessels, other glass plasticwarc, contaminated cultures

 

      B) Autoclaving

ii) Heat labile compounds like GA3, ABA, zeatin, urea,·enzymes, etc.

 

      C) Surface sterilization

iii) Empty glassware, instruments like scalpels, forceps, needles

 

     D) Liquid (membrane filter of 

       0.45 μm or smaller pore size)

iv) All plant materials to be cultured

 

 

TLS Online TPP Program

#Question id: 49

#SCPH01 Biochemistry

The equilibrium constant, Keq, for the following reaction is 2 × 105 M: If the measured cellular concentrations are [ATP] = 5 mM, [ADP] = 0.5 mM, and [Pi] = 5 mM, on the basis of the above information calculate the Keq in living cells?

TLS Online TPP Program

#Question id: 3668

#SCPH05 I Biotechnology

In most plasmids, the genes for proteins required for replication are located very close to the ______________ at which their gene are transcribed.

TLS Online TPP Program

#Question id: 5532

#SCPH28 | Zoology

When does a human egg cell accomplish its meiotic division?