Human insulin is being commercially produced from a transgenic species of

1. Escherichia

2. Mycobacterium

3. Rhizobium

4. Saccharomyces

Cry-I endotoxins obtained from Bacillus thuringiensis are effective against

(1) mosquitoes                         
(2) Nematodes
(3) boll worms                         
(4) Flies

What is an antisense technology?

(1) A cell displaying a foreign antigen used for synthesis of antigens.

(2) Production of somaclonal variants in tissue cultures.

(3) When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene

(4) RNA polymerase producing DNA

Cultivation of Bt cotton has been much in the news. The prefix Bt means

(1) "Barium-treated" cotton seeds

(2) "Bigger thread" variety of cotton with better tensile strength

(3) produced by "biotechnology" using restriction enzymes and ligases

(4) carrying an endotoxin gene from Bacillus thuringienesis.

RNA interference is essential for the

(1) cell proliferation

(2) cell defence

(3) cell differentiation

(4) micropropagation

Genetically modified (GM) crops can be produced by

(1) recombinant DNA technology

(2) somatic hybridization

(3) cross breeding

(4) micropropagation

Which of the following genes do not occur naturally in living organisms?

(1) Bt genes

(2) RNAi genes

(3) Cry genes

(4) Endogeneous cytoplasmic defense genes

The protein products of the following Bt toxin genes cry I Ac and cry II Ab are responsible for controlling

(1) bollworm

(2) roundworm

(3) moth

(4) fruit fly

Three critical research areas of biotechnology are:

I. Providing the best catalyst in the form of improved organism usually a microbe or pure enzyme

II. Multiple Ovulation Transfer Technology (MOET)

III. Creating optimal conditions through engineering for a catalyst to act.

IV. Downstream processing technologies

(1) I, II, III, IV      

(2) I, III, IV          

(3) I, II                 

(4) II and IV

Bt toxin is harmful to insects like:

(1) Lepidoterans (tobacco budworm, armyworms)

(2) Coleopterans (beetles)

(3) Dipterans (flies and mosquito)

(4) All are correct