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NEET • BIOLOGY • BIOTECHNOLOGY AND ITS APPLICATIONS
Biotechnology and its applications practice · Easy
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1
Easy
1 of 60
Remembering
+4 | -1
Which bacteria was the first to be used as biopesticide on the commercial scale in the world?
View answer and explanation
Correct option: A
Bacillus thuringiensis
Option A (Bacillus thuringiensis) is correct because Bacillus thuringiensis (Bt) was the first bacteria to be used commercially as a biopesticide due to its production of insecticidal toxins.
2
Easy
2 of 60
Understanding
+4 | -1
Which of the following options is not a reason to produce transgenic animals?
View answer and explanation
Correct option: D
To bring about changes in natural evolutionary pattern
Option D is correct because changing the natural evolutionary pattern is not a primary goal or justification for producing transgenic animals; their purpose is more focused on research, disease models, and biological product creation.
3
Easy
3 of 60
Remembering
+4 | -1
Which of the following can be controlled by using biopesticides?
View answer and explanation
Correct option: D
All of these
Option D (All of these) is correct because biopesticides can be used to control insects, diseases, and weeds through various mechanisms.
4
Easy
4 of 60
Remembering
+4 | -1
The protein produced by some strains of Bacillus thuringiensis can kill all of the following except
View answer and explanation
Correct option: D
Ants
Option D is correct. Bt toxin is effective against beetles, armyworms (caterpillars), and flies, but not ants.
5
Easy
5 of 60
Remembering
+4 | -1
Which technique should be used to achieve amplification of the nucleic acid?
View answer and explanation
Correct option: B
PCR
PCR (Polymerase Chain Reaction) is the technique used to amplify nucleic acid, making Option B the correct answer.
6
Easy
6 of 60
Understanding
+4 | -1
Eli Lilly company produced DNA sequences corresponding to the following types of chains of Insulin gene
I) 'A' chain
II) 'B' chain
III) 'C' chain
IV) 'D' chain
I) 'A' chain
II) 'B' chain
III) 'C' chain
IV) 'D' chain
View answer and explanation
Correct option: C
I, II only
The correct answer is C (I, II only) because Eli Lilly produced DNA sequences corresponding to the 'A' and 'B' chains of the insulin gene, which are the functional chains of insulin. The 'C' chain is removed during insulin maturation.
7
Easy
7 of 60
Application
+4 | -1
Babanrao is an organic farmer growing ladyfingers in his field. What are the precautions he will take to control pests in his field?
I) Use of ladybird and dragonflie to control butterfly caterpillars
II) Use of Nucleopolyhedrovirus to control arthropods.
III) Use of Bacillus thuringiensis to control butterfly caterpillars
IV) Use of Trichoderma to control arthropods
I) Use of ladybird and dragonflie to control butterfly caterpillars
II) Use of Nucleopolyhedrovirus to control arthropods.
III) Use of Bacillus thuringiensis to control butterfly caterpillars
IV) Use of Trichoderma to control arthropods
View answer and explanation
Correct option: B
II and III
Option B (II and III) is correct because Nucleopolyhedrovirus and Bacillus thuringiensis are commonly used in organic farming to control pests.
8
Easy
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Understanding
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Assertion (A): For effective treatment of a disease, early diagnosis and understanding its pathophysiology is very important.
Reason (R): r-DNA technology, PCR and ELISA are some of the techniques that serve the purpose of early diagnosis.
Reason (R): r-DNA technology, PCR and ELISA are some of the techniques that serve the purpose of early diagnosis.
View answer and explanation
Correct option: B
Both assertion and reason are true but reason is not the correct explanation of assertion
Option B (Both assertion and reason are true but reason is not the correct explanation of assertion) is correct because both the assertion and the reason are true statements, but the reason doesn't directly explain why early diagnosis and understanding pathophysiology are important for effective treatment.
9
Easy
9 of 60
Understanding
+4 | -1
Which of the following is used for introducing nematode specific genes into host tobacco plant for initiating RNAi?
View answer and explanation
Correct option: B
Agrobacterium vector
Option B (Agrobacterium vector) is correct because Agrobacterium is commonly used to introduce genes into plants for RNA interference.
10
Easy
10 of 60
Remembering
+4 | -1
When the first clinical gene therapy was given?
View answer and explanation
Correct option: A
1990
Option A (1990) is correct because the first clinical gene therapy was given in 1990.
11
Easy
11 of 60
Remembering
+4 | -1
Which of the following is now being economically produced by biotechnological procedures?
View answer and explanation
Correct option: C
Insulin
Option C (Insulin) is correct because insulin is now economically produced using biotechnological procedures, specifically recombinant DNA technology.
12
Easy
12 of 60
Understanding
+4 | -1
Assertion (A): The first clinical gene therapy was given in 1990 to a 4-year old girl with adenosine deaminase (ADA) deficiency.
Reason (R): Bone marrow transplantation, enzyme replacement therapy are completely curative.
Reason (R): Bone marrow transplantation, enzyme replacement therapy are completely curative.
View answer and explanation
Correct option: C
Assertion is true but reason is false
The correct answer is C (Assertion is true but reason is false) because the first clinical gene therapy was indeed for ADA deficiency, but bone marrow transplantation and enzyme replacement therapy are not completely curative.
13
Easy
13 of 60
Remembering
+4 | -1
The first human hormone produced by recombinant DNA technology is
View answer and explanation
Correct option: A
Insulin
Option A (Insulin) is correct because insulin was the first human hormone produced using recombinant DNA technology.
14
Easy
14 of 60
Understanding
+4 | -1
Early detection of a disease is possible by
View answer and explanation
Correct option: D
Both (1) and (3)
Option D (Both (1) and (3)) is correct because PCR and rDNA technology with ELISA are both used for early disease detection.
15
Easy
15 of 60
Understanding
+4 | -1
Read the following and choose the incorrect statement.
View answer and explanation
Correct option: D
Mature insulin has three polypeptide chains.
Option D (Mature insulin has three polypeptide chains) is the incorrect statement because mature insulin has only two polypeptide chains (A and B) linked by disulfide bonds.
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16
Easy
16 of 60
Understanding
+4 | -1
Disadvantages of chemical agents are
I. chemicals are toxic and harmful to human beings and animals
II. chemical pollute the environment and plants
III. weedicides used to remove weeds also pollute the soil
Choose the correct option
I. chemicals are toxic and harmful to human beings and animals
II. chemical pollute the environment and plants
III. weedicides used to remove weeds also pollute the soil
Choose the correct option
View answer and explanation
Correct option: A
I, II and III
Option A (I, II and III) is correct because all the given statements are disadvantages of chemical agents.
17
Easy
17 of 60
Remembering
+4 | -1
Cry II Ab and cry I Ab produce toxins that control
View answer and explanation
Correct option: A
Cotton bollworms and corn borer respectively
Option A (Cotton bollworms and corn borer respectively) is correct because Cry II Ab and Cry I Ab toxins are effective against cotton bollworms and corn borers, respectively.
18
Easy
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Understanding
+4 | -1
Statement A: Bt toxin is produced by Bacillus thuringiensis bacteria during particular phase of their growth.
Statement B: Protoxins are converted into an active form of toxin due to alkaline pH of gut which solubilize the crystals.
Statement B: Protoxins are converted into an active form of toxin due to alkaline pH of gut which solubilize the crystals.
View answer and explanation
Correct option: A
Both statement A and statement B are correct
Option A (Both statement A and statement B are correct) is correct because both statements accurately describe the production and activation of Bt toxin.
19
Easy
19 of 60
Understanding
+4 | -1
Which of the following could be a permanent cure for treatment of Severe Combined Immuno Deficiency (SCID)?
View answer and explanation
Correct option: A
Gene therapy
Option D (All of the above) is the most comprehensive answer because gene therapy, bone marrow transplant, and enzyme replacement therapy are all potential treatments for SCID, but gene therapy offers the possibility of a permanent cure.
20
Easy
20 of 60
Remembering
+4 | -1
First hormone produced by recombinant DNA technology is
View answer and explanation
Correct option: B
Insulin
Option B (Insulin) is correct because insulin was the first hormone produced using recombinant DNA technology.
21
Easy
21 of 60
Understanding
+4 | -1
Given below are two statements.
Statement I: GMO Foreign gene is introduced into the organism,
and is usually maintained as extra-chromosomal entity
or is integration into the genome of the organism.
Statement II: Hybrid cross is done between total genomes of two
species or strain.
Choose the correct answer from the option given
below:
Statement I: GMO Foreign gene is introduced into the organism,
and is usually maintained as extra-chromosomal entity
or is integration into the genome of the organism.
Statement II: Hybrid cross is done between total genomes of two
species or strain.
Choose the correct answer from the option given
below:
View answer and explanation
Correct option: D
Both Statement I and Statement II are correct
Option D (Both Statement I and Statement II are correct) is correct because GMOs involve the introduction of foreign genes, and hybrids result from crossing entire genomes of two species or strains.
22
Easy
22 of 60
Remembering
+4 | -1
Which of the following companies started selling humulin in the year 1983?
View answer and explanation
Correct option: A
Eli Lilly
Option A (Eli Lilly) is correct because Eli Lilly was the first company to market Humulin in 1983.
23
Easy
23 of 60
Remembering
+4 | -1
Which of the following diagnostic technique is based on antigen antibody reaction?
View answer and explanation
Correct option: B
ELISA
ELISA (Enzyme-Linked Immunosorbent Assay) is based on the principle of antigen-antibody reaction, making Option B the correct answer.
24
Easy
24 of 60
Understanding
+4 | -1
For an effective treatment of a disease:
View answer and explanation
Correct option: C
Early diagnosis and understanding of its pathophysiology are needed
Option C (Early diagnosis and understanding of its pathophysiology are needed) is correct because both early diagnosis and understanding the disease's mechanisms are crucial for effective treatment.
25
Easy
25 of 60
Understanding
+4 | -1
The application of biotechnology includes all except
View answer and explanation
Correct option: D
Conventional hybridization
Option D (Conventional hybridization) is correct because it is a traditional breeding method, not a biotechnology application.
26
Easy
26 of 60
Understanding
+4 | -1
Assertion (A): Using conventional methods of diagnosis (serum and urine analysis, etc.) early detection is not possible.
Reason (R): Very low concentration of a bacteria or virus cannot be detected by serum and urine analysis, etc.
Reason (R): Very low concentration of a bacteria or virus cannot be detected by serum and urine analysis, etc.
View answer and explanation
Correct option: A
Both assertion and reason are true and reason is the correct explanation of assertion
Option A (Both assertion and reason are true and reason is the correct explanation of assertion) is correct because the reason accurately explains why conventional methods are not suitable for early detection.
27
Easy
27 of 60
Understanding
+4 | -1
In children born with adenosine deaminase deficiency, permanent cure is possible by
View answer and explanation
Correct option: C
introducing functional ADA genes into cells at early embryonic stages
The correct answer is C (introducing functional ADA genes into cells at early embryonic stages) because introducing the functional gene at an early stage allows for integration into the developing immune system, potentially leading to a permanent cure.
28
Easy
28 of 60
Remembering
+4 | -1
The term ‘Humulin’ is used for
View answer and explanation
Correct option: C
Human insulin
Option C (Human insulin) is correct because 'Humulin' is the trade name for human insulin produced through recombinant DNA technology.
29
Easy
29 of 60
Remembering
+4 | -1
GEAC is responsible for making decisions regarding?
View answer and explanation
Correct option: D
All of the above
Option D is correct because GEAC (Genetic Engineering Appraisal Committee) is responsible for making decisions regarding the validity of GM research, the safety of introducing GM organisms, and the validity of biopatents.
30
Easy
30 of 60
Remembering
+4 | -1
When a person with defective Adenosine Deaminase (ADA) was treated, which of the following steps were performing for gene therapy?
I. Lymphocytes were extracted from the bone marrow of the patient
II. Lymphocytes were grown in a culture out side the body
III. Lymphocytes were transfected with the normal ADA genes
IV. The transfected cells were returned to the patients
I. Lymphocytes were extracted from the bone marrow of the patient
II. Lymphocytes were grown in a culture out side the body
III. Lymphocytes were transfected with the normal ADA genes
IV. The transfected cells were returned to the patients
View answer and explanation
Correct option: D
I, II, III and IV
Option D (I, II, III and IV) is correct because all the listed steps are performed in gene therapy for a person with defective Adenosine Deaminase (ADA).
Revision notes and key takeaways
Review BIOTECHNOLOGY AND ITS APPLICATIONS in your textbook or class notes, then use this set to check your understanding.
Key Takeaways
- ✓ This set contains 60 single-correct-answer MCQs on BIOTECHNOLOGY AND ITS APPLICATIONS.
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