Students are advised to practice the NCERT MCQ Questions for Class 12 Biology Chapter 12 Biotechnology and its Applications with Answers Pdf free download is available here. MCQ Questions for Class 12 Biology with Answers are prepared as per the Latest Exam Pattern. Students can solve these Biotechnology and its Applications Class 12 MCQs Questions with Answers and assess their preparation level.
Biotechnology and its Applications Class 12 MCQs Questions with Answers
Solving the Biotechnology and its Applications Multiple Choice Questions of Class 12 Biology Chapter 12 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Biotechnology and its Applications Class 12 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 12 Biology Class 12 and cross-check your answers during preparation.
Select the correct answer:
Question 1.
Bt cotton is not:
(a) A GM plant
(b) Insect resistant
(c) a bacterial gene expression system
(d) Resistant to all pesticides.
Answer
Answer: (c) a bacterial gene expression system
Question 2.
C-peptide of human insulin is:
(a) A part of mature insulin molecule
(b) Responsible for formation of disulphide bridges
(c) Removed during maturation of pro-insulin to insulin
(d) Responsible for its biological activity.
Answer
Answer: (c) Removed during maturation of pro-insulin to insulin
Question 3.
GEAC stands for:
(a) Genome Engineering Action Committee
(b) Ground Environment Action Committee
(c) Genetic Engineering Approval Committee
(d) Genetic and Environment Approval committee.
Answer
Answer: (c) Genetic Engineering Approval Committee
Question 4.
a-1 antitrypsin as:
(a) An antacid
(b) An enzyme
(c) Used to treat arthritis
(d) Used to treat emphysema.
Answer
Answer: (d) Used to treat emphysema.
Question 5.
A probe which is a molecule used to locate specific sequences in a mixture of DNA or RNA molecules could be:
(a) A single-stranded RNA
(b) A single-stranded DNA
(c) Either RNA or DNA
(d) Can be ss DNA but not ss RNA.
Answer
Answer: (c) Either RNA or DNA
Question 6.
Choose the correct option regarding Retrovirus.
(a) An RNA virus that can synthesise DNA during infection
(b) A DNA virus that can synthesise RNA during infection
(c) An ssDNA virus
(d) AdsRNA virus.
Answer
Answer: (a) An RNA virus that can synthesise DNA during infection
Question 7.
The site of production of ADA in the body is:
(a) Bone marrow
(b) Lymphocytes
(c) Blood plasma
(d) Monocytes.
Answer
Answer: (a) Bone marrow
Question 8.
A protoxin is:
(a) A primitive toxin
(b) A denatured toxin
(c) Toxin produced by protozoa
(d) Inactive toxin.
Answer
Answer: (d) Inactive toxin.
Question 9.
Pathophysiology is the:
(a) Study of physiology of pathogen
(b) Study of normal physiology of host
(c) Study of altered physiology of host
(d) None of the above.
Answer
Answer: (c) Study of altered physiology of host
Question 10.
The trigger for activation of toxin of Bacillus thuringiensis is:
(a) Acidic pH of stomach
(b) High temperature
(c) Alkaline pH of gut
(d) Mechanical action in the insect gut.
Answer
Answer: (c) Alkaline pH of gut
Question 11.
Golden rice is:
(a) A variey of rice grown along the yellow river in China
(b) Long stored rice having yellow colour tint
(c) A transgenic rice having gene for p-carotene
(d) Wild variety of rice with yellow coloured grains.
Answer
Answer: (c) A transgenic rice having gene for p-carotene
Question 12.
In RNAi, genes are silenced using:
(o) ssDNA
(b) dsDNA
(c) dsRNA
(d) ssRNA.
Answer
Answer: (c) dsRNA
Question 13.
The first clinical gene therapy was done for the treatment of:
(a) AIDS
(b) Cancer
(c) Cystic fibrosis
(d) SCID.
Answer
Answer: (d) SCID.
Question 14.
ADA is an enzyme which is deficient in a genetic disorder SCID. What is the full form of ADA?
(a) Adenosine deoxy aminase
(b) Adenosine deaminase
(c) Aspartate deaminase
(d) Arginine deaminase.
Answer
Answer: (b) Adenosine deaminase
Question 15.
Silencing of a gene could be achieved through the use of:
(a) Short interfering RNA (RNAi)
(b) Antisense RNA
(c) By Both
(d) None of the above.
Answer
Answer: (c) By Both
Assertion and Reason Type Questions
These questions consist of two statements each, printed as Assertion and Reason. While answering these questions you are required to choose any one of the following four responses.
(a) If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
(b) If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
(c) If Assertion is true but the Reason is false.
(d) If both Assertion and Reason are false.
Question 16.
Assertion: Indian Government has set up organisations such as GEAC (Genetic Engineering Approval Committee), which will make decisions regarding the validity of GM research and the safety of introducing GM-organisms for public services.
Reason: Genetic modification of organisms can have unpredicatable results when such organisms are introduced into the ecosystem.
Answer
Answer: (a) If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
Question 17.
Assertion: Gene therapy is a collection of methods that allows correction of a gene defect that has been diagnosed in a child/ embryo.
Reason: In gene therapy genes are inserted into a person’s cells and tissues to treat a disease.
Answer
Answer: (b) If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
Question 18.
Assertion: ELISA is widely used for the detection of infectious diseases like AIDS.
Reason: ELISA is very sensitive and selective test and needs very small amount of reagents.
Answer
Answer: (b) If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
Question 19.
Assertion: Vaccination is also called preventive inoculation.
Reason: A vaccine prevents the formation of antibodies inside the body.
Answer
Answer: (c) If Assertion is true but the Reason is false.
Question 20.
Assertion: Humulin is more effective than the insulin produced by conventional methods.
Reason: Humulin is absorbed rapidly in the blood than the conventionally produced insulin.
Answer
Answer: (a) If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
Question 21.
Assertion: Interferons are a type of antibodies produced by cells infected by bacteria.
Reason: Interferons stimulate inflammation at the site of injury.
Answer
Answer: (d) If both Assertion and Reason are false.
Question 22.
Assertion: Agrobacterium tumefaciens is popular in genetic engineering because this bacterium is associated with roots of all cereals and pulse crops.
Reason: A gene incorporated in the bacterial chromosomal genome gets automatically transferred to the crop with which the bacterium is associated.
Answer
Answer: (c) If Assertion is true but the Reason is false.
Question 23.
Assertion: DNA fingerprinting involves identifying differences in some specific regions in DNA sequence.
Reason: In repetitive DNA sequences, a small stretch of DNA is repeated many times.
Answer
Answer: (a) If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
Hope the information shared regarding the NCERT MCQ Questions for Class 12 Biology Chapter 12 Biotechnology and its Applications with Answers Pdf free download is true and genuine as far as our knowledge is concerned. If you feel any information regarding CBSE Class 12 Biology Biotechnology and its Applications MCQs Multiple Choice Questions with Answers is missing do reach us and we will look into it and add it accordingly.