A transgenic food crop, which may help in solving the problem of night blindness in developing countries is:

1. Flavr savr tomatoes

2. Starlink maize

3. Bt soybean

4. Golden rice

Subtopic:  Intro to Agri Applications | Other GM Crops |
 86%
NEET - 2008
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Main objective of production / use of herbicide resistant GM crops is to 

(1) eliminate weeds from the field without the use of manual labour

(2) eliminate weeds from the field without the use of herbicides

(3) encourage eco-friendly herbicides

(4) reduce herbicide accumulation in food particles for health safety

Subtopic:  Intro to Agri Applications | Other GM Crops |
NEET - 2008
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Human insulin is being commercially produced from a transgenic species of

1. Escherichia

2. Mycobacterium

3. Rhizobium

4. Saccharomyces

Subtopic:  Med Applications & Humulin |
 89%
From NCERT
NEET - 2008
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Cry-I endotoxins obtained from Bacillus thuringiensis are effective against

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

Subtopic:  Bt Crops |
 85%
From NCERT
NEET - 2008
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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

Subtopic:  Interference RNA Tech |
 89%
From NCERT
NEET - 2008
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The foreign gene in a transgenic plant may be derived from

(1) an insect 

(2) an animal

(3) a bacteria 

(4) all of these.

 

Subtopic:  Intro to Agri Applications |
 72%
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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.

Subtopic:  Bt Crops |
 95%
From NCERT
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An example of gene therapy is 

(1) production of injectable hepatitis B vaccine 

(2) production of vaccines in food crops like potatoes which can be eaten

(3) introduction of gene for adenosine deaminase in persons suffering from Severe Combined Immuno-deficiency (SCID)

(4) production of test tube babies by artificial insemination and implantation of fertilized eggs.

Subtopic:  Gene Therapy |
 93%
From NCERT
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Which onc of the following is a correct statement?
(1) "B" in "Bt-cotton" indicates that it is a genetically modified organism produced through biotechnology

(2) Somatic hybridization involves fusion of two complete plant cells carrying desired genes.

(3) The anticoagulant hirudin is being produced from transgenic Brassica napus seeds.

(4) "Flavr Savr" variety of tomato has enhan the production of ethylene which improves its taste.

Subtopic:  Other GM Crops |
 50%
AIIMS - 2005
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In transgenics, expression of transgene in target tissue is determined by

(1) enhancer

(2) transgene

(3) promoter

(4) reporter

Subtopic:  Transgenic Microbes & Animals |
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