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MCQ Questions Class 12 Biotechnology and its Applications with Answers - Set - 5
Question 1:
Silencing of mRNA has been used in producing transgenic plants resistant to
(a) boll worms
(b) nematodes
(c) white rusts
(d) bacterial blights
Correct Answer – (B)
Question 2:
Natural genetic engineer is :
(a) Bacillus subtilis
(b) Pseudomonas sp.
(c) Escherichia coli
(d) Agrobacterium tumefaciens
Correct Answer – (A)
Question 3:
Maximum number of existing transgenic animals is of
(a) fish
(b) mice
(c) cow
(d) pig.
Correct Answer – (B)
Question 4:
Which of the following Bt crops is being grown in India by the farmers?
(a) Brinjal
(b) Soybean
(c) Maize
(d) Cotton
Correct Answer – (D)
Question 5:
An improved variety of transgenic basmati rice
(a) does not require chemical fertilizers and growth hormones
(b) gives high yield and is rich in vitamin A
(c) is completely resistant to all insect pests and diseases of paddy
(d) gives high yield but has no characteristic aroma.
Correct Answer – (B)
MCQ Questions Class 12 Biotechnology and its Applications With Answers
Question 6:
Which Vitamin has been transferred to golden rice?
(a) Vit-B12
(b) Vit-A
(c) Vit-D
(d) Vit-C
Correct Answer – (B)
Question 7:
Select the correct statement(s)-
(1) IARI has released a mustard variety rich in vitamin C.
(2) Pusa Sawani variety of Okra is resistant to aphids.
(3) Hairiness of leaves provides resistance to insect pests.
(4) Agriculture accounts for approximately 33% of India’s GDP and employs nearly 62% of the population.
(a) (1) and (2)
(b) (2) and (3)
(c) (1), (3) and (4)
(d) None of these
Correct Answer – (C)
Question 8:
What is antisense technology?
(a) When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene
(b) RNA polymerase producing DNA
(c) A cell displaying a foreign antigen used for synthesis of antigens
(d) Production of somaclonal variants in tissue cultures
Correct Answer – (A)
Question 9:
ELISA is used to detect viruses where the key reagent is
(a) alkaline phosphatase
(b) catalase
(c) DNA probe
(d) RNase.
Correct Answer – (A)
Question 10:
In India, the organisation responsible for assessing the safety of introducing genetically modified organisms for public use is
(a) Indian Council of Medical Research (ICMR)
(b) Council for Scientific and Industrial Research (CSIR)
(c) Research Committee on Genetic Manipulation (RCGM)
(d) Genetic Engineering Appraisal Committee (GEAC)
Correct Answer – (D)
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