Interferons are active proteins (antiviral proteins) that are effective against most viruses. The organ that is mainly affected by the deficiency of alpha 1-antitrypsin is the lung. In 1994, European Patent Office (EPO) granted a patent (EPO patent No.436257) to the US Corporation W.R. Grace Company and US Department of Agriculture for a method of controlling fungi on plants with the aid of hydrophobic extracted Neem oil. Free PDF Download of CBSE Biology Multiple Choice Questions for Class 12 with Answers Chapter 11 Biotechnology: Principles and Processes. The high content of cysteine in alpha-lactalbumin boosts the immune system and promotes wound healing. The high level of tryptophan, which may help improve mood, sleep and cognitive performance. Options A, C and D are incorrect. The best characterised are those of Bacillus thuringiensis (BT), where the insecticidal proteins are found as crystalline bodies. Biology MCQ Questions for Class 12 with Answers Pdf Download. Bt cotton, a transgenic crop variety has been introduced in India. Options B, C and D are incorrect. The US Department of Agriculture biopirated the product of neem named azadirachtin for its uses as pesticide and for various medical values. This bacterial gene protects cotton from tha ball worm, a major pest of cotton. … In 1994, European Patent Office (EPO) granted a patent (EPO patent No.436257) to the US Corporation W.R. Grace Company and US Department of Agriculture for a method of controlling fungi on plants with the aid of hydrophobic extracted Neem oil. These MCQ's are extremely critical for all CBSE students to score better marks. Multiple Choice Questions (MCQ) for CBSE Class 12-science Biology chapters on Topperlearning. Glycosylated protein like monoclonal antibodies require high quality level of post-translational modifications or folding processes of the protein molecule. We have provided Biotechnology: Principles and Processes Class 12 Biology MCQs Questions with Answers to help students understand the … Beta carotene is a precursor of vitamin A that is needed for the developments of rods in the eye. Maximum utilization of the techniques of biotechnology has been made in the field of medicines. The Indian Patents Bill Third Amendment Act was in 2005. Answer: The appetite-suppressing element is from a cactus Hoodia and is biopirated for its potential cure for obesity. The proinsulin molecule has 81 amino acids. In industries microorganisms are used for the manufacturing of gluconic acid. The protein encoded by the gene "cry IAb" controls corn borer. This is possible in mammalian animals and not in bacteria. The processing of long ds RNA to short interfering siRNAs in the process of RNA interference involves the enzyme known as dicer. The insertion of synthetic DNA containing a normal gene into the affected cells is known as gene therapy. The first transgenic plant came in 1982, an antibiotic -resistant tobacco plant. Transgenic mice are used to test the safety of vaccines. Antibiotics are medicines that inhibits the growth of microrganisms ( bacteria,fungi). The US Department of Agriculture biopirated the product of neem named azadirachtin for its uses as pesticide and for various medical values. Dicer is ribonuclease (RNase) III. Dicer contains two single active sites, each of which cleaves one strand of the dsRNA backbone. Recombinant DNA technology prepared vaccine is called second generation vaccine. Options A, B and C are incorrect. Golden rice may prevent the incidence of night blindness. Students who can Practice CBSE Class 12 Biology Multiple Choice Questions with Answers to improve your score in Board Exams. Transgenic birds express the recombinant protein in their eggs. (c) at the beginning of the proliferative phase. Check the below NCERT MCQ Questions for Class 12 Biology Chapter 11 Biotechnology: Principles and Processes with Answers Pdf free download. The commonly used enzymes are alkaline phosphatase and peroxidase. Options A, B and D are incorrect. Alpha-1 antitrypsin deficiency damages the alveoli in the lungs.The patients may feel short of breath and develop lung diseases, such as emphysema, asthma, or chronic bronchitis. Certain members of the gram positive bacteria belonging to the genus Bacillus produce proteins that are insecticidal. of human lactalbumin per litre that is important for infants. Options A, B and C are incorrect. Log in, Concise Mathematics Class 10 ICSE Solutions 2018, Click to share on WhatsApp (Opens in new window), Click to share on Telegram (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Tumblr (Opens in new window), Click to share on Pinterest (Opens in new window). Options A, B and D are incorrect. Options A, C and D are incorrect. Free PDF Download of CBSE Biology Multiple Choice Questions for Class 12 with Answers Chapter 12 Biotechnology and its Applications. (a) at the mind secretory phase. The Bt cotton variety contains a foreign gene obtained from Bacillus thuringiensis. Option A - Cotton bollworms are controlled by the protein encoded by cry IAc and cry IIAb. The illegal usurpation and patenting of naturally occurring indigenous biological materials or knowledge is known as biopiracy. Options A, B and C are incorrect. Options A, B and C are incorrect. Biology MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Prepare regularly to score good marks in the CBSE class 12th examination. Options B, C and D are incorrect. Your email address will not be published. MCQ Questions for Class 12 Biology with Answers were prepared based on the latest exam pattern. Transgenic plants are the ones whose DNA is modified using genetic engineering methods.Transgenic plants have artificially inserted gene or genes ( for desired trait) into the cell. Bacteria protect themselves from viruses by fragmenting viral DNA with. Biology is considered as the main subject in class 12th CBSE exam for pre-medical students.
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