If gene isolate from marrow cells producing ADA is introduced into cells at early embryonic stage, it could be a permanant cure of ADA deficiency because the early embryonic cells :

1. Are more differentiated than the later stage cells

2. Are constantly dividing and do not get differentiated 

3. Are easy to manipulate than the later stage cells

4. Are virtually immortal 

Subtopic:  Gene Therapy |
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To test the safety of polio vaccine, the organisms used are transgenic :

1. Mice

2. Pigs

3. Monkey 

4. Cattle

Subtopic:  Transgenic Microbes & Animals |
 87%
From NCERT
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If the goal were to create a plant resistant to an insecticide, which cell-based plant technology would be most effective ?

(1) clonal propagation

(2) cybridization

(3) protoplast fusion

(4) mutant selection

Subtopic:  Intro to Agri Applications |
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Which kind of therapy was given in 1990 to a four-year-old girl with Adenosine Deaminase (ADA) deficiency?

(1) Gene therapy 

(2) Chemotherapy

(3) Immunotherapy

(4) Radiation therapy

Subtopic:  Gene Therapy |
 95%
From NCERT
NEET - 2016
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The two polypeptides of human insulin are linked together by

(1) phosphodiester bonds

(2) covalent bonds

(3) disulphide bridges

(4) hydrogen bonds

 

Subtopic:  Med Applications & Humulin |
 90%
From NCERT
NEET - 2016
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Which part of the tobacco plant is infected by Meloidegyne incognitia?

1. Leaf

2. Stem

3. Root

4. Flower

Subtopic:  Interference RNA Tech |
 88%
From NCERT
NEET - 2016
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The introduction of tDNA into plants involves

1. infection of the plant by Agrobacterium tumefaciens

2. altering the pH of soil, heat-shocking the plants

3. exposing the plants to cold for a brief period

4. allowing the plant roots to stand in water

Subtopic:  Tools: Vectors: II | Tools |
 92%
NEET - 2015
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In Bt cotton, the Bt toxin present in plant tissue as pro-toxin is converted into active toxin due to 

(1) Alkaline pH of the insect gut

(2) acidic pH of the insect gut

(3) action of gut microorganisms

(4) presence of conversion factors in insect gut

Subtopic:  Bt Crops |
 94%
From NCERT
NEET - 2015
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The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of 

(1) Non-recombinant bacteria containing β-galactosidase

(2) Insertional inactivation of α-galactosidase in non-recombinant bacteria

(3) Insertional inactivation of β-galactosidase in recombinant bacteria

(4) Inactivation of glycosidase enzyme in recombinant bacteria

 

Subtopic:  Selectable Markers: III | Selection of Recombinant Transformants | Selectable Markers |
 69%
From NCERT
NEET - 2013
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The process of RNA interference has been used in the development of plants resistant to 

(1) fungi

(2) viruses

(3) insects

(4) nematodes

Subtopic:  Interference RNA Tech |
 85%
From NCERT
NEET - 2011
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