Probes are molecules of

(1) DNA

(2) RNA

(3) Proteins

(4) All of the above

Subtopic:  Molecular Diagnosis |
 67%
From NCERT
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New biotechnology utilizes new organisms developed from present organisms using
a. Mutations
b. Recombinant DNA Technology
c. Recombinations
d. All correct

Subtopic:  Transgenic Microbes & Animals |
 52%
From NCERT
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The immobilization of enzymes is achieved by
a. Killing the cells without affecting enzymes
b. Attaching the enzymes covalently to a solid support
c. Entrapping the living cells in gel
d. All of these

 75%
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A genetically engineered micro-organism which has found extensive use in bioremediation oil spills is a species of
a. Trichoderma
b. Mucuna
c. Pseudomonas
d. Bacillus

Subtopic:  Transgenic Microbes & Animals |
 77%
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Incorporation of the gene for phytoene synthase and carotene desaturase to make a particular variety of yellowish rice has proven useful in the treatment of-

(1) Congenital heart disease

(2) Night blindness

(3) Xeroderma

(4) Phrenoderma

Subtopic:  Other GM Crops |
 91%
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Cry toxin acts by

(1) Lysis of intestinal cells

(2) Binding to midgut epithelium

(3) Cell swelling

(4) More than one correct

Subtopic:  Bt Crops |
 81%
From NCERT
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Humulin production through microbial factories does not include the incorporation of the gene for

(1) A peptide

(2) B peptide

(3) C peptide

(4) Both (1) and (2)

Subtopic:  Med Applications & Humulin |
 87%
From NCERT
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What is true for molecular diagnosis?

a. It is inexpensive

b. It involves drawing of serum for the test

c. It can be used in the initial stages of the onset of the disease

d. All of the above

Subtopic:  Molecular Diagnosis |
 51%
From NCERT
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The Cry toxin does not kill the bacterium in which it is produced because
a. Bacterium is resistant to the toxin
b. The bacterial cytoplasm is highly acidic
c. The bacterial cytoplasm is highly alkaline
d. The toxin is activated in alkaline medium

Subtopic:  Bt Crops |
 75%
From NCERT
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A transgenic organism is one which has

(1) Foreign DNA in some of its cells

(2) Foreign RNA in all of its cells

(3) Foreign DNA in all of its cells

(4) Both (1) and (2)

Subtopic:  Transgenic Microbes & Animals |
 53%
From NCERT
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