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Questions Available: 13
Year: 2024
Topic: Biotechnology and its Applications
1.
Given below are two statements:
Statement I: Bt toxins are insect group specific and coded by a gene cry IAc.
Statement II: Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic pH of the insect gut.
In the light of the above statements, choose the correct answer from the options given below:
(1).
Statement I is true but Statement II is false
(2).
Statement I is false but Statement II is true
(3).
Both Statement I and Statement II are true
(4).
Both Statement I and Statement II are false

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Solution
Year: 2024
Topic: Biotechnology and its Applications
2.
Which of the following are fused in somatic hybridization involving two varieties of plants?
(1).
Protoplasts
(2).
Pollens
(3).
Callus
(4).
Somatic embryos

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Solution
Year: 2024
Topic: Biotechnology and its Applications
3.
Match List I with List II:

Choose the correct answer from the options given below:
(1).
A-III, B-IV, C-I, D-II
(2).
A-II, B-IV, C-I, D-III
(3).
A-II, B-I, C-IV, D-III
(4).
A-III, B-I, C-II, D-IV

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Solution
Year: 2023
Topic: Biotechnology and its Applications
4.
Which one of the following techniques does not serve the purpose of early diagnosis of a disease for its early treatment ?
(1).
Serum and Urine analysis.
(2).
Polymerase Chain Reaction (PCR) technique.
(3).
Enzyme Linked Immuno-Sorbent Assay (ELISA) technique.
(4).
Recombinant DNA Technology.

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Solution
Year: 2022
Topic: Biotechnology and its Applications
5.
In gene therapy of Adenosine Deaminase (ADA) deficiency, the patient requires periodic infusion of genetically engineered lymphocytes because:
(1).
Retroviral vector is introduced into these lymphocytes
(2).
Gene isolated from marrow cells producing ADA is introduced into cells at embryonic stages
(3).
Lymphocytes from patient's blood are grown in culture, outside the body
(4).
Genetically engineered lymphocytes are not immortal cells.

Test
Solution
Year: 2022
Topic: Biotechnology and its Applications
6.
Statements related to human insulin are given below:
Which statement(s) is/are correct about genetically engineered Insulin?
(a) Pro-hormone insulin contain extra stretch of Cpeptide.
(b) A peptide and B-peptide chains of insulin were 1 produced separately in E. coli, extracted and combined by creating a disulphide bond between them.
(c) Insulin used for treating Diabetes was extracted from Cattles and Pigs.:RpP.
(d) Pro-hormone insulin needs to be processed for converting into a mature and functional hormone.
(e) Some patients develop allergic reactions to the foreign insulin.
Choose the most appropriate answer from the options given below:
(1).
(a), (b) and (d) only
(2).
(b) only
(3).
(c) and (d) only
(4).
(c), (d) and (e) only

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Solution
Year: 2021
Topic: Biotechnology and its Applications
7.
When gene targeting involving gene amplification is attempted in an individual's tissue to treat disease, it is known as:
(1).
Biopiracy
(2).
Gene therapy
(3).
Molecular diagnosis
(4).
Safety testing

Test
Solution
Year: 2019
Topic: Biotechnology and its Applications
8.
What triggers activation of protoxin to active Bt toxin of Bacillus thuringiensis in boll worm ?
(1).
Moist surface of midgut
(2).
Alkaline pH of gut
(3).
Acidic pH of stomach
(4).
Body temperature

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Solution
Year: 2019
Topic: Biotechnology and its Applications
9.
Which of the following is true for Golden rice ?
(1).
It is pest resistan, with a gene from Bacillus thuringiensis .
(2).
It is drought tolerant, developed using Agrobacterium vector .
(3).
It has yellow grains , because of a gene introduced from primitive variety of rice .
(4).
It is Vitamin A enriched , with a gene from daffodil .

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Solution
Year: 2018
Topic: Biotechnology and its Applications
10.
A ‘new’ variety of rice was patented by a foreign company, though such varieties have been present in India for a long time. This is related to
(1).
basmati.
(2).
lerma Rojo.
(3).
sharbati sonora.
(4).
Co-667.

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Year: 2018
Topic: Biotechnology and its Applications
11.
Use of bioresources by multinational companies and organisations without authorisation from the concerned country and its people is called
(1).
Bioexploitation.
(2).
Biodegradation.
(3).
Biopiracy.
(4).
Bio-infringement

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Solution
Year: 2018
Topic: Biotechnology and its Applications
12.
In India, the organisation responsible for assessing the safety of introducing genetically modified organisms for public use is
(1).
Genetic Engineering Appraisal Committee (GEAC).
(2).
Research Committee on Genetic Manipulation (RCGM).
(3).
Council for Scientific and Industrial Research (CSIR).
(4).
Indian Council of Medical Research (ICMR)

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Solution
Year: 2016
Topic: Biotechnology and its Applications
13.
The two polypeptides of human insulin are linked together by
(1).
phosphodiester bonds
(2).
covalent bonds
(3).
disulphide bridges
(4).
hydrogen bonds

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Solution