Biotechnology and its Applications Class 12 Biology MCQ with Answers has been organized according to the latest exam pattern in the CBSE Class 12 Biology syllabus for the upcoming CBSE Class 12 Biology Exam. Biotechnology and its Applications covers topics like biotechnological applications in agriculture and medicine, transgenic animals and ethical isssues, These questions are designed to help students understand the concept thoroughly. They are helpful for revision and for grasping the concepts effectively. These MCQ questions cover in-text book questions and important topics to help students assess their preparation level for CBSE board exams.
Recent – Biotechnology : Principles and Processes Class 12 Biology MCQ With Solutions
CBSE Class 12 Chapter 10 Biotechnology and its Applications MCQs
Check below the CBSE Class 12 Biology MCQ with answers and Clear your idea of Chapter 10 Biotechnology and its Applications.
Q.1. The applications of biotechnology include
(i) Therapeutics (ii) GM crops for agriculture
(iii) Diagnostics (iv) Waste treatment
(a) (i), (ii) and (iii) only
(b) (ii), (iii) and (iv) only
(c) (i), (iii) and (iv) only R(d) (i), (ii), (iii) and (iv)
Answer
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Q.2. Which of the following statements is incorrect regarding RNA interference?
(a) It is a method of cellular defense.
(b) The introduction of DNA into the host cell produces both sense and anti-sense RNA.
(c) It involves silencing of a specific mRNA.
(d) Dicer is a DNase enzyme that cuts the dsRNA molecules into siRNAs.
Answer
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Q.3. Which of the following is not used as a bioweapons?
(a) Bacillus thuringiensis (b) Bacillus anthracis
(c) Rickettsia sp (d) Shigella sp
Answer
(a): Soil bacterium Bacillus thuringiensis is well known for its application in biotechnological uses for producing Bt crops. The bacterium produces proteins called cry protein, that kills certain insects like lepidopterans, coleopterans and dipterans. Therefore, Bt crops are being protected from these insects and loss in their yield can be controlled by this way.
Q.4. Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (Bt) is resistant to
(a) insect pests (b) fungal diseases
(c) plant nematodes (d) insect predators.
Answer
Q.5. Which one of the following is a correct statement?
(a) “Bt” in “Bt-cotton” indicates that it is a genetically modified organism produced through biotechnology.
(b) Classical plant breeding involves fusion of two somatic cells carrying desired genes.
(c) The anticoagulant hirudin is being produced from transgenic Brassica napus seeds.
(d) Golden rice is a transgenic variety of rice rich in vitamin E.
Answer
Q.6. Which of the following has been covered under the broad patent category by U.S. company?
(a) Triticum (b) Pisum sativum
(c) Basmati rice (d) Both (b) and (c)
Answer
Q.7. Hirudin gene inserted in Brassica napus was
(a) synthesised chemically
(b) obtained from Bacillus thuringiensis
(c) obtained from Agrobacterium
(d) none of these
Answer
Q.8. In RNAi, the genes are silenced using
(a) ds-RNA (b) ss-DNA
(c) ss-RNA (d) ds-DNA.
Answer
Q.9. The bacteria Francisella tularensis causes disease in humans.
(a) plague (b) Q-fever (c) tularemia (d) small pox
Answer
Q.10. Read the following statements and select the correct ones.
(i) Cry proteins are toxic to insects and act as insecticides.
(ii) There are 53 amino acids present in insulin.
(iii) Bt-cotton was the first transgenic crop approved by commercial cultivation in India.
(iv) Brazzein is a high calorie-sweetner.
(a) (i) and (iii)
(b) (ii) and (iii)
(c) (ii) and (iv)
(d) (iii) and (iv)
Answer
We hope the MCQs for the CBSE Class 12 Biology Chapter 10 on Biotechnology : Principles and Processes are helpful for your board exam preparation.
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