Assertion (A): RNA interference takes place in all eukaryotic organisms as a method of cellular defense.
Reason (R): This method involves ds RNA which prevent transcriptional process.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. Both (A) and (R) are false.

Subtopic:  Interference RNA Tech |
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The process of RNA interference (RNAi) involves:
1. inducing the transcription of genes by substrate
2. silencing of a specific mRNA due to a complementary dsRNA molecule
3. repressing the transcription of genes by product
4. increasing the rate of transcription by activator proteins
Subtopic:  Interference RNA Tech |
 96%
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Consider the two statements:
Statement I: The proteins encoded by the genes cryIAc and cryIIAb control the corn borer.
Statement II: The proteins encoded by the gene cryIAb control the cotton bollworms.
1. Statement I is correct; Statement II is correct
2. Statement I is incorrect; Statement II is correct
3. Statement I is correct; Statement II is incorrect
4. Statement I is incorrect; Statement II is incorrect
Subtopic:  Bt Crops |
 73%
From NCERT
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The main challenge for the production of insulin using rDNA techniques was:
1. culturing bacteria containing recombinant DNA in labs
2. finding suitable restriction enzymes to cut human DNA
3. isolation of DNA in pure form from a human cell
4. getting insulin assembled into a mature form
Subtopic:  Med Applications & Humulin |
 85%
From NCERT
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The first clinical gene therapy was given in 1990 to a 4-year-old girl with:
1. adenosine deaminase (ADA) deficiency
2. alpha-1-antitrypsin deficiency
3. phenylalanine hydroxylase deficiency
4. homogentisic acid oxidase deficiency  
Subtopic:  Gene Therapy |
 96%
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ELISA stands for:
1. Easily Located Immuno Specific Antigen
2. Early Live Inactive Surface Antigen
3. Energy Loaded Intermediate Site on Apoenzyme
4. Enzyme-Linked Immuno Sorbent Assay
Subtopic:  Molecular Diagnosis |
 96%
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Root knot disease in tobacco is caused by:
1. Infective double stranded RNA
2. Abnormally folded proteins
3. Nematode Meloidogyne incognita
4. Nematode Caenorhabditis elegans
Subtopic:  Interference RNA Tech |
 94%
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Creation of new varieties of pest-resistant GM crops:
1. makes crops more resistant to abiotic stresses
2. reduces reliance on chemical pesticides
3. enhances nutritional value of food crops
4. increases efficiency of mineral usage by plants

Subtopic:  Intro to Agri Applications | Other GM Crops |
 70%
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What was used to deliver the normal copy of gene in the gene therapy trials for ADA deficiency?
1. Microinjection
2. Biolistics
3. Retrovirus
4. Liposomes
Subtopic:  Gene Therapy |
 85%
From NCERT
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The practice of commercially exploiting naturally occurring biochemical or genetic material, especially by obtaining patents that restrict its future use, while failing to pay fair compensation to the community from which it originates, is called as:
1.    Biopiracy
2.    Bioenergetics
3.    Bioremediation
4.    Bioprospecting
Subtopic:  Ethical Issues |
 86%
From NCERT
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