Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

41.

In human the inheritance of sex linkage takes place through :

  • autosomes

  • Y - chromosome

  • X- chromosome

  • both 'b' and 'c'


42.

Hybridoma technology is used to :

  • kill the cancer cells

  • formation of somaclonal antibodies

  • formation of somatic hybrids

  • formation of antibiotics


43.

Yeast is used in the production of :

  • acetic acid

  • citric acid

  • ethyl alcohol

  • curd


44.

The vaccine of Hepatitis-B is a :

  • first generation vaccine

  • interferon

  • second generation vaccine

  • third generation vaccine


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45.

The term 'ecosystem' was coined by :

  • E.P. Odum

  • A.G. Tansley

  • Carl Mobious

  • W. Clementus


46.

Streptomycin was isolated first time by :

  • A. Flemming

  • Robert Koch

  • N. Borlaug

  • S. Waksman


47.

Which of the following micro-organism is used for conversion of milk into curd?

  • Xanthomonas citri

  • Bacillus megatherium

  • Acetobacter aceti

  • None of the above


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48.

Kohler and Milstein developed biotechnology for :

  • monoclonal antibodies

  • steroid synthesis

  • immobilization of enzymes

  • myeloma


A.

monoclonal antibodies

Monoclonal antibodies are monospecific antibodies that are made by identical immune cells that are all clones of a unique parent cell.

In 1975, Georges Kohler and Cesar Milstein succeeded in making fusions of myeloma cell lines with B cells to produce hybridomas that made antibodies to known antigens. These are pure, high affinity antibodies, specific for an antigen which are obtained outside the body from clonal cultures of hybridoma cells.


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49.

Which of the following is formed by the reactions of UV-rays of sunlight?

  • SO2

  • CO

  • Ozone

  • Florides


50.

In India highest amount of coal is present in :

  • West Bengal

  • Maharastra

  • Jharkhand

  • Assam


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