TLS Online TPP Program

#Question id: 4319


Why are BRCA1 and BRCA2 considered to be tumor-suppressor genes?

#SCPH28 | Zoology
  1. Their normal products participate in repair of DNA damage.

  2. The mutant forms of either one of these prevent breast cancer.

  3. The normal genes make estrogen receptors.

  4. They block penetration of breast cells by chemical carcinogens.

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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: 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: 15872

#SCPH05 I Biotechnology

For optimum callus growth, the given some following vitamins are required, except;

TLS Online TPP Program

#Question id: 15872

#SCPH05 I Biotechnology

For optimum callus growth, the given some following vitamins are required, except;

TLS Online TPP Program

#Question id: 15873

#SCPH05 I Biotechnology

Which is the most commonly used carbon source, for all cultured plant materials, including even green shoots.

TLS Online TPP Program

#Question id: 15873

#SCPH05 I Biotechnology

Which is the most commonly used carbon source, for all cultured plant materials, including even green shoots.