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NEET • BIOLOGY • BIOTECHNOLOGY AND ITS APPLICATIONS
Biotechnology and its applications practice · Easy
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31
Easy
31 of 60
Remembering
+4 | -1
Desired improved varieties of economically useful crops are raised by
View answer and explanation
Correct option: C
Hybridization
Option C (Hybridization) is correct because hybridization involves crossing different varieties to combine desirable traits, leading to improved crop varieties.
32
Easy
32 of 60
Understanding
+4 | -1
During the processing of the proinsulin into insulin
View answer and explanation
Correct option: B
C – peptide is removed from proinsulin
Option B is correct because the C-peptide is removed during the processing of proinsulin to form functional insulin.
33
Easy
33 of 60
Understanding
+4 | -1
Which of the following does not come under the biological products of transgenic animals?
View answer and explanation
Correct option: D
Production of milk rich in casein
Option D is correct because producing milk rich in casein is a natural function of cows and not a specific biological product achieved through transgenic animal technology.
34
Easy
34 of 60
Remembering
+4 | -1
Human insulin is being commercially produced from a transgenic species of
View answer and explanation
Correct option: A
Escherichia
Option A (Escherichia) is correct because human insulin is commercially produced in transgenic Escherichia coli bacteria.
35
Easy
35 of 60
Remembering
+4 | -1
Which kind of therapy was given in 1990 to a four-year-old girl with adenosine deaminase (ADA) deficiency?
View answer and explanation
Correct option: B
Gene therapy
Option B (Gene therapy) is correct because in 1990, a four-year-old girl with adenosine deaminase (ADA) deficiency was treated with gene therapy.
36
Easy
36 of 60
Understanding
+4 | -1
Which of the following statements is not correct ?
View answer and explanation
Correct option: C
The functional insulin has A and B chains linked together by hydrogen bonds.
Option C is the correct answer because functional insulin has A and B chains linked by disulfide bridges, not hydrogen bonds.
37
Easy
37 of 60
Remembering
+4 | -1
How many recombinant therapeutics worldwide have been approved for human use?
View answer and explanation
Correct option: C
30
Option C (30) is correct because approximately 30 recombinant therapeutics have been approved for human use worldwide.
38
Easy
38 of 60
Understanding
+4 | -1
Assertion: ADA complementary DNA is inserted in the lymphocytes to treat SCID.
Reason: The patient requires periodic infusion of such genetically engineered lymphocytes.
Reason: The patient requires periodic infusion of such genetically engineered lymphocytes.
View answer and explanation
Correct option: B
Both assertion and reason are true but reason is not the correct explanation of assertion
The correct answer is B (Both assertion and reason are true but reason is not the correct explanation of assertion) because while both statements are true, the reason doesn't directly explain why the assertion is true. The need for periodic infusions is due to the limited lifespan of the genetically engineered lymphocytes.
39
Easy
39 of 60
Understanding
+4 | -1
What is true about Bt toxin?
View answer and explanation
Correct option: A
The inactive protoxin gets converted into active form in the insect gut
Option A (The inactive protoxin gets converted into active form in the insect gut) is correct because the Bt toxin is produced as an inactive protoxin that needs to be activated in the insect gut.
40
Easy
40 of 60
Remembering
+4 | -1
Pest resistant Bt cotton crop has been developed by transferring a gene from
View answer and explanation
Correct option: C
Bacillus thuringiens is
Option C (Bacillus thuringiensis) is correct because the Bt cotton crop is developed by transferring a gene from this bacterium.
41
Easy
41 of 60
Remembering
+4 | -1
About …A… recombinant therapeutics have been approved for human use the world over. In India, …B… of these are presently being marketed Here A and B can be
View answer and explanation
Correct option: B
A-30, B-12
Option A-30, B-12 is correct because approximately 30 recombinant therapeutics have been approved globally, with about 12 being marketed in India.
42
Easy
42 of 60
Remembering
+4 | -1
The milk of Rosie cow contained human specific protein known as:-
View answer and explanation
Correct option: A
Alpha lactalbumin
Option A (Alpha lactalbumin) is correct because the milk of Rosie the cow contained human alpha-lactalbumin.
43
Easy
43 of 60
Understanding
+4 | -1
Which has the ability to transform normal cells into recombinant cells?
View answer and explanation
Correct option: A
Ti plasmid
Option A (Ti plasmid) is correct because Ti plasmid from Agrobacterium tumefaciens has the natural ability to transfer genes into plant cells.
44
Easy
44 of 60
Understanding
+4 | -1
Genetic engineering has been successfully used for producing
View answer and explanation
Correct option: A
transgenic mice for testing the safety of polio vaccine before use in humans
Option A is correct because transgenic mice are used to test the safety of polio vaccines before human use, ensuring efficacy and safety.
45
Easy
45 of 60
Remembering
+4 | -1
Transgenic animals exist for which of the following human diseases?
a. Alzheimer's b. Cancer c. Cystic fibrosis
Choose the option which includes all the correct ones
a. Alzheimer's b. Cancer c. Cystic fibrosis
Choose the option which includes all the correct ones
View answer and explanation
Correct option: C
a, b and c
Option C (a, b and c) is correct because transgenic animal models exist for Alzheimer's, Cancer and Cystic Fibrosis.
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46
Easy
46 of 60
Remembering
+4 | -1
Which of the following is/are true?
I. Biowar is the use of biological weapons against humans and/or their crops and animals.
II. Bioethics is the unauthorized use of bioresources and traditional knowledge related to bioresources for commercial benefits.
III. Biopatent is exploitation of bioresources of other nations without proper authorization.
I. Biowar is the use of biological weapons against humans and/or their crops and animals.
II. Bioethics is the unauthorized use of bioresources and traditional knowledge related to bioresources for commercial benefits.
III. Biopatent is exploitation of bioresources of other nations without proper authorization.
View answer and explanation
Correct option: B
I only
Option B (I only) is correct because only the statement about biowar being the use of biological weapons is true. Bioethics and biopatent definitions are incorrect.
47
Easy
47 of 60
Understanding
+4 | -1
Mature form of recombinant human insulin lacks
View answer and explanation
Correct option: D
C-peptide chain
Option D (C-peptide chain) is correct because the mature form of recombinant human insulin, produced through rDNA technology, lacks the C-peptide chain.
48
Easy
48 of 60
Understanding
+4 | -1
Main objective of production/use of herbicide resistant GM crops is to
View answer and explanation
Correct option: D
Reduce herbicide accumulation in food articles for health safety
Option D (Reduce herbicide accumulation in food articles for health safety) is the correct answer because the main objective is to minimize herbicide residues in food.
49
Easy
49 of 60
Remembering
+4 | -1
Mature insulin differs from pro-insulin because the former does not have
View answer and explanation
Correct option: C
C-chain
Option C (C-chain) is correct because mature insulin lacks the C-peptide, which is cleaved from pro-insulin during processing.
50
Easy
50 of 60
Understanding
+4 | -1
Application of biotechnology include
I) Therapeutics
II) Diagnostics
III) GMO
IV) Processed food
I) Therapeutics
II) Diagnostics
III) GMO
IV) Processed food
View answer and explanation
Correct option: D
I, II, III, IV
Option D (I, II, III, IV) is correct because all listed options are applications of biotechnology.
51
Easy
51 of 60
Remembering
+4 | -1
The pesticide most persistent in the soil is
View answer and explanation
Correct option: C
Dieldrin
Option C (Dieldrin) is correct because Dieldrin is known to be one of the most persistent pesticides in the soil due to its chemical stability and slow degradation.
52
Easy
52 of 60
Analyzing
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Assertion (A): Using Agrobacterium vectors, nematode-specific genes were introduced into the host plant.
Reason (R): A Solanaceae member Meloidegyne incognitia infects the roots of tobacco plants and causes a great reduction in yield.
Reason (R): A Solanaceae member Meloidegyne incognitia infects the roots of tobacco plants and causes a great reduction in yield.
View answer and explanation
Correct option: C
Assertion is true but reason is false
Option C is correct because the assertion is true, but the reason is false; Meloidegyne incognita does infect tobacco roots, but it's controlled using RNA interference, not Agrobacterium vectors directly introducing nematode-specific genes.
53
Easy
53 of 60
Remembering
+4 | -1
White revolution is related to the increase in production
View answer and explanation
Correct option: B
Milk
Option B (Milk) is correct because the White Revolution in India specifically refers to the increase in milk production.
54
Easy
54 of 60
Remembering
+4 | -1
Maximum number of existing transgenic animals of
View answer and explanation
Correct option: B
Mice
Option B (Mice) is correct because mice are the most common transgenic animals due to their short life cycle and ease of genetic manipulation.
55
Easy
55 of 60
Understanding
+4 | -1
Which of the following is not a genetically modified organism (GMO)?
View answer and explanation
Correct option: B
Dolly
Option B (Dolly) is correct because Dolly was a cloned animal, not genetically modified. Cloning involves creating a genetic copy, while genetic modification involves altering the genes.
56
Easy
56 of 60
Remembering
+4 | -1
The first transgenic cow Rosie, produced milk which was rich in
View answer and explanation
Correct option: B
Human -lactalbumin
Option B (Human -lactalbumin) is correct because Rosie's milk was enriched with human alpha-lactalbumin.
57
Easy
57 of 60
Remembering
+4 | -1
How many amendments have been done to the Indian Patents Bill?
View answer and explanation
Correct option: B
2
Option C is correct because there have been 3 amendments to the Indian Patents Bill.
58
Easy
58 of 60
Understanding
+4 | -1
Why does a patient with ADA
deficiency require a repeated
infusion of genetically engineered
lymphocytes?
deficiency require a repeated
infusion of genetically engineered
lymphocytes?
View answer and explanation
Correct option: D
Both 1 and 2
The correct answer is D (Both 1 and 2) because in ADA deficiency, patients are often unable to produce enough functional WBCs (lymphocytes), and their immune response is therefore hampered, necessitating repeated infusions.
59
Easy
59 of 60
Understanding
+4 | -1
Statement-I: Indian Government has set up organisations such as GEAC (Genetic Engineering Approval Committee), which will make decisions regarding the validity of GM research and safety of introducing GM organisms for public services India.
Statement-II : One of the apprehensions regarding genetically modified organisms that they may show adverse effect on biodiversity.
Statement-II : One of the apprehensions regarding genetically modified organisms that they may show adverse effect on biodiversity.
View answer and explanation
Correct option: A
Both statement I and II are correct
Option A (Both statement I and II are correct) is correct because GEAC does regulate GM research and GMOs can have adverse effects on biodiversity.
60
Easy
60 of 60
Remembering
+4 | -1
Which of the following herbicides and defoliant were used by the US military in its herbicidal warfare programme during the Vietnam war?
View answer and explanation
Correct option: D
Both (b) and (c)
Option D is correct because both Agent Orange and Super Orange were herbicides and defoliants used by the US military during the Vietnam War.
Revision notes and key takeaways
Review BIOTECHNOLOGY AND ITS APPLICATIONS in your textbook or class notes, then use this set to check your understanding.
Showing 31-60 of 60 questions