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TLS Online TPP Program

#Question id: 15173

Microbes such as Chlorobium and Chromatium develop as visible green and purple zones. These microorganisms use

#Part-B Specialized Branches in Biotechnology
  1. Hydrogen sulfide as an electron source, and CO2 from sodium carbonate as a carbon source
  2. Hydrogen sulfide as an electron source, and O2 from sodium carbonate as a oxygen source
  3. Mercuric chloride as an electron source, and CO2 from sodium carbonate as a carbon source
  4. Citrate as an electron source, and ethanol as a carbon source
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TLS Online TPP Program

#Question id: 18776

#Part-A Aptitude & General Biotechnology

In Western blotting, a protein mixture is separated by electrophoresis; then the protein bands are electrophoretically transferred onto nitrocellulose and identified with 
TLS Online TPP Program

#Question id: 18777

#Part-A Aptitude & General Biotechnology

which of the following technique using antibodies labelled with fluorescent molecules can be used to visualize antigen on or within cells.
TLS Online TPP Program

#Question id: 18778

#Part-A Aptitude & General Biotechnology

which of the following technique provides an unusually powerful technology for the quantitative analysis and sorting of cell populations labelled with one or more fluorescent antibodies.
TLS Online TPP Program

#Question id: 18779

#Part-A Aptitude & General Biotechnology

Flow-cytometric analysis for the detection and measurement of subpopulations of leukocytes, including those of leukaemia, is usually performed using monoclonal antibodies. Why is this the case?
Choose whether each of the following statements is true 
a) Indirect immunofluorescence is a more sensitive technique than direct immunofluorescence
b) Most antigens induce a polyclonal response. 
c) For precipitation to occur, both antigen and antibody must be multivalent.
d) ELISA tests using chemiluminescence are more sensitive than chromogenic ones and precipitation tests are more sensitive than agglutination tests
TLS Online TPP Program

#Question id: 18780

#Part-A Aptitude & General Biotechnology

Which of the following does not participate in the formation of antigen-antibody complexes?
TLS Online TPP Program

#Question id: 18781

#Part-A Aptitude & General Biotechnology

In which of the following case a large lattice is formed?