RNA interference (RNAi) technology has gained popularity in the last few years. Why?
1. It is used in developing gene silencing therapies.
2. It can be used in developing therapies for the treatment of cancer.
3. It can be used to develop hormone replacement therapies.
4. It can be used to produce crop plants that are resistant to viral pathogens.
Select the correct answer:
A. 1, 2 and 4
B. 2 and 3
C. 1 and 3
D. 1 and 4
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Recombinant DNA Technology (Genetic Engineering) allows genes to be transferred.
1. Across different species of plants.
2. From animals to plants.
3. From micro-organisms to higher organisms.
Select the correct answer:
A. Only 1
B. Only 2 and 3
C. Only 1 and 3
D. 1, 2 and 3
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Nobel Prize winning scientist James D. Watson is known for his work in which area?
A. Metallurgy
B. Meteorology
C. Environmental protection
D. Genetics
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Scientists of N.D.R.I., Kamal (Haryana) developed the second clone of which on the following animals?
A. Sheep
B. Buffalo
C. Cow
D. Goat
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Which one of the following chemicals is used to fuse plant protoplasts in genetic engineering?
A. Ethylene
B. Polyethylene glycol
C. Calcium nitrate
D. Sodium hydroxide
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Bt brinjal is
A. A new variety of Brinjal
B. A genetically modified Brinjal
C. A wild variety of Brinjal
D. None of the above
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Sexual reproduction causes genetic variation because of
A. Blending of genes
B. Chromosomal changes
C. Shuffling of genes
D. All of the above
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Among living organisms, which one of the following is the most
responsible factor for bringing about the origin of a new species?
A. Isolation
B. Mutation
C. Natural selection
D. Sexual reproduction
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Which of the following is used in Genetic Engineering?
A. Plastid
B. Plasmid
C. Mitochondria
D. Ribosome
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The prime utility of 'Golden Rice' in combating vitamin A deficiency, the world's leading cause of blindness which affects about 250 million children lies in the richness of its kernel in
A. Beta carotene
B. Thiamine
C. Ascorbic acid
D. Calciferol
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Assertion (A): In human being, the females play a major role in determining the sex of the offspring.
Reason (R): Women have two 'X' chromosomes.
A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true, but (R) is not the correct explanation of (A)
C. (A) is true, but (R) is false
D. (A) is false, but (R) is true
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What is Cas9 protein that is often mentioned in news?
A. A molecular scissors used in targeted gene editing
B. A biosensor used in the accurate detection of pathogens in patients
C. A gene that makes plants pest resistant
D. A herbicidal substance synthesized in genetically modified crops
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The cloned sheep 'Dolly' was created through which of the following technique given below.
A. Gene transfer
B. Nuclear transfer
C. Somatic cell transfer
D. Germinal cell transfer
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The Basis of DNA fingerprinting is
A. The double helix
B. Errors in base sequence
C. DNA replication
D. DNA polymorphism
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In the context of the developments in Bioinformatics, the term 'transcriptome', sometimes seen in the news, refers to
A. A range of enzymes used in genome editing
B. The full range of mRNA molecules expressed by an organism
C. The description of the mechanism of gene expression
D. A mechanism of genetic mutations taking place in cells
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Which one of the following is not achieved by transgenic?
A. Production of biodegradable plastic
B. Production of edible vaccines
C. Production of cloned animals
D. Production of transgenic crops
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James D. Watson and Francis Crick are associated with the discovery of
A. Vaccine
B. Structure of DNA
C. Anti-malarial drugs
D. Penicillin
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Which of the facts about Dolly (sheep), the first mammal cloned from an adult somatic cell is not correct?
A. Dolly died in the year 2003
B. Dolly died due to lung disease
C. Dolly was born in the year 1998
D. Dolly was born in Scotland
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World level program 'Human Genome Project' is related with
A. Establishment of Superman society
B. Identification of colour distinct breeds
C. Genetic improvements of human breeds
D. Identification and mapping of human genes and its sequence
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In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?
1. Iris scanning
2. Retinal scanning
3. Voice recognition
Select the correct answer:
A. Only 1
B. Only 2 and 3
C. Only 1 and 3
D. 1, 2 and 3
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