DNA or RNA segment tagged with a radioactive molecule is called

1. vector

2. probe

3. clone

4. plasmid

Subtopic:  Molecular Diagnosis |
 94%
From NCERT
NEET - 2010
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Genetic engineering has been successfully used for producing

(1) transgenic mice for testing safety of polio vaccine before use in humans

(2) transgenic models for studying new treatments for certain cardiac diseases

(3) Transgenic cow-Rosie which produces high fat milk for making ghee

(4) animals like bulls for farm work as they have super power

Subtopic:  Transgenic Microbes & Animals |
 84%
From NCERT
NEET - 2010
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Some of the characteristics of Bt cotton are

(1) long fibre and resistance to aphids

(2) medium yields, long fibres and resistance to beetle pests

(3) high yield and production of toxic protein crystals which kill dipteran pests

(4) high yield and resistance to bollworms

Subtopic:  Bt Crops |
 54%
From NCERT
NEET - 2010
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An improved variety of transgenic basmati rice

(1) does not require chemical fertilizers and growth hormones

(2) gives high yield and is rich in vitamin-A

(3) is completely resistant to all insect pests and diseases of paddy

(4) gives high yield but has no characteristic aroma

Subtopic:  Other GM Crops |
 81%
NEET - 2010
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The bacterium Bacillus thuringiensis is widely used in contemporary biology as a/an

(1) indicator of water pollution

(2) insecticide

(3) agent for production of dairy products

(4) source of industrial enzyme

Subtopic:  Bt Crops |
 92%
From NCERT
NEET - 2009
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The genetic defect-Adenosine Deaminase (ADA) deficiency may be cured permanently by

(1) periodic infusion of genetically engineered lymphocytes having functional ADA cDNA 

(2) administering adenosine deaminase activators

(3) introducing bone marrow genes producing ADA into cells at early embryonic stages

(4) enzyme replacement therapy

Subtopic:  Gene Therapy |
 89%
From NCERT
NEET - 2009
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What is true about Bt toxin?

1. The inactive protoxin gets converted into active form in the insect gut

2. Bt protein exists as active toxin in the Bacillus

3. The activated toxin enters the ovaries of the pest to sterilize it and thus prevent its

multiplication

4. The concerned Bacillus has antitoxins

Subtopic:  Bt Crops |
 93%
From NCERT
NEET - 2009
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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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