Biology MCQ Questions for Class 12 with Answers Pdf […] But, oral administration of these proteins or peptides poses some problems related to it. We provide all important questions and answers from chapter Biotechnology and its Applications of Biology. They are used to study the side effects of a particular chemical or drug. It can be done either by bone marrow transplantation or by enzyme replacement therapy in which functional ADA is injected into the patient. Required fields are marked *, Chapter 12: Biotechnology And Its Application, Frequently Asked Questions on Biotechnology and Its Application. The gene expression can be controlled by RNA interference. Candidates who are ambitious to qualify the Class 12 with good score can check this article for Notes. For this, the genes that are necessary for oil formation in seeds must be recognized. Crystals of Bt toxin produced by some bacteria do not kill the bacteria themselves because – A.9. What are the advantages of recombinant insulin? She was suffering from a genetic disorder Adenosine Deaminase deficiency. It gets activated due to the alkaline pH environment of the gut of the insect when it ingests the inactive toxin protein. Gkseries provide you the detailed solutions for class 12 Biology from NCERT or CBSE text book as per exam pattern, to help you in day to day learning. The genetic modifications of plants are useful in the following areas: It helps the plants to tolerate the abiotic stresses. The working of cloning and transfer of gene for growth hormone into E.coli can be depicted as given below: 7. On the contrary, GMOs are created by incorporating the genes with desired characteristics from a plant or animal of one species to the DNA of a different species. A.3. It reduces the use of chemical pesticides. Gkseries provide you the detailed solutions for class 12 Biology from NCERT or CBSE text book as per exam pattern, to help you in day to day learning. It is an Indian government organization. For more information on Biotechnology Applications and other Biology related topics, explore BYJU’S website for further reference. A.2. ‘cry’ is the gene that encodes for Bt toxin. A.10. A.1. Biology MCQs For Class 12 Chapter Wise With Answers Pdf Download is very important for students who want to score good marks in their CBSE board examination. Gkseries provide you the detailed solutions for class 12 Biology from NCERT or CBSE text book as per exam pattern, to help you in day to day learning. A.8. Making of orally active protein pharmaceutical: NCERT Solutions for Class 12 Biology Chapter 12 – Biotechnology and its Applications are grouped under the Unit – Biotechnology. The gene inserted was human alpha-lactalbumin. It is a method in which a target antigen is captured in samples using a specific antibody and a target molecule is detected using an enzyme reaction with a substrate. Through this chapter, students learn how we humans use biotechnology to improve the quality of human life, specifically in the field of health and food production. ‘CRY’ is the protein coded by the ‘cry’ genes. Illustrate using any one example. It is not a natural way to cultivate plants and hence can damage the environment. As the host organism divides, its progeny also receives the foreign gene. A.8. Compared to vitamin supplements, this is a simpler and low-priced alternative. Which gene was inserted into it? How does it differ from a hybrid? A.3. Hence, we say that man has exploited this protein to produce some transgenic crops with the property of insect-resistance such as Bt corn, Bt cotton, etc. Biology Important Questions Class 12 are given below. The humans might have a potential immune response against the administered insulin derived from animals. These quiz objective questions are helpful for competitive exams. Courses View All. based on new pattern of CBSE. This leads to the lysis of epithelial cells and ultimately the insect dies. 1. NCERT Solutions; RD Sharma. A hybrid is produced when the pollen of one plant is used to fertilize some unrelated plant species. Biology MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. What is the major problem to be encountered? It hybridises to its complementary DNA and can be detected by autoradiography. Why is the line of treatment for a genetic disease different from that of an infectious disease? How has man exploited this protein to his benefit? Which is the first transgenic cow? This is because the genetically engineered lymphocytes used in the therapy are mortal and the enzyme needs to be administered in the patient periodically. Why does this treatment reoccur in nature? A.5. Enlist any four areas where genetic modifications of plants had been useful. Four areas where they can be used are: Transgenic animals are served as experimental models for the study of various human diseases. The patented variety of Basmati was derived from ‘Indian farmer’s variety’. CLASS 12 BOOKS DOWNLOAD. The below mentioned page consist of Important questions for CBSE class 12 Biology Chapter-12 - Biotechnology and its Applications . But they are still not available for human consumption, as this variety of rice has faced a considerable opposition from environmental activists. A.6. What is gene therapy? The DNA encoding an antigen is inserted into the bacterial or mammalian cells to stimulate an immune response, expressing the antigens in these cells and then purifying it from them. What are the drawbacks of the insulin obtained from the slaughtered cows and pigs? Such active protein pharmaceuticals, when orally taken, are encapsulated proteins or peptides in formulations or liposomes which facilitates their transfer also. How is a foreign DNA introduced in a host maintained by a host and transferred to the successive generations? What are antigens and antibodies? Infectious diseases can be cured by certain medications that can kill the pathogens responsible for the disease. Biopiracy is the commercial exploitation of naturally occurring biochemical or genetic material by obtaining patents that restrict its future use without paying any compensation to the native community. To inspect whether the use of genetically modified crops is safe for public use or not. A.4. 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