In human the inheritance of sex linkage takes place through :

• autosomes

• Y - chromosome

• X- chromosome

• both 'b' and 'c'

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

The vaccine of Hepatitis-B is a :

• first generation vaccine

• interferon

• second generation vaccine

• third generation vaccine

The term 'ecosystem' was coined by :

• E.P. Odum

• A.G. Tansley

• Carl Mobious

• W. Clementus

Streptomycin was isolated first time by :

• A. Flemming

• Robert Koch

• N. Borlaug

• S. Waksman

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

• Xanthomonas citri

• Bacillus megatherium

• Acetobacter aceti

• None of the above

Kohler and Milstein developed biotechnology for :

• monoclonal antibodies

• steroid synthesis

• immobilization of enzymes

• myeloma

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

• SO₂

• CO

• Ozone

• Florides

In India highest amount of coal is present in :

• West Bengal

• Maharastra

• Jharkhand

• Assam