CBSE Questions for Class 12 Medical Biology Biotechnology And Its Applications Quiz 5 - MCQExams.com

$$\textbf{Correct answer: B}$$ 

$$\textbf{Option (A):}$$ 

$$\bullet$$ Hybridoma technology is used for producing monoclonal antibodies.

$$\bullet$$ Using a myeloma cell, which is modified to produce antibodies, the monoclonal antibodies are produced through hybridoma technology. 

$$\bullet$$ Monoclonal antibodies are those which have their specificity to a single type of antigen. 

$$\textbf{Option (B):}$$ 

$$\bullet$$ Molecular farming is the process in which a gene of interest is introduced in a host animal to create a transgenic animal and then the products are harvested from them. 

$$\bullet$$ This may lead to large-scale biological products from transgenic animals. 

$$\textbf{Option (C):}$$ 

$$\bullet$$ Gene therapy is used to treat patients suffering from genetic disorders.

$$\bullet$$ By the alterations in the given gene, the genetic factor responsible for the disease can be removed to an extent in certain tissues by using transplantation. 

$$\textbf{Option (D):}$$ 

$$\bullet$$ Downstream processing is the process of collection and purification of the products.

$$\bullet$$ It is mainly used in the processes of producing the desired product in bioreactors. 

$$\bullet$$ The last kill product produced needs to be purified and using a specific set of chemical and physical processes the purification of the product is performed. 

Hence, the correct answer is option (B).

$$\textbf{Correct answer: A}$$ 

$$\textbf{Option (A):}$$ 

$$\bullet$$ The clot buster which is obtained from a modified $$Streptococcus$$ is called the streptokinase. 

$$\bullet$$ It acts on the blood clots for the removal of those clots in the blood vessel ensuring proper blood flow.

$$\textbf{Option (B):}$$ 

$$\bullet$$ Penicillin is an antibiotic which is produced from $$Penicillium$$. It can stop the growth of bacterial cells.

$$\textbf{Option (C):}$$ 

$$\bullet$$ Cyclosporin A is obtained from the function $$Trichoderma$$ $$polysporum$$.

$$\bullet$$ This is used as an immunosuppressant drug. 

$$\textbf{Option (D):}$$ 

$$\bullet$$ Statin is produced by the yeast $$Monascus$$ $$purpureus$$.

$$\bullet$$ It is specifically given to those patients suffering from higher cholesterol as it can reduce the cholesterol level of the patient.

Hence, the correct answer is option (A).

• During amphimixis, fertilization creates a noncellular cell that includes genetic material from each gamete. 
• In nature, several organisms produce clones through agamogenesis(asexual reproduction).
•  Offspring don't possess actual copies of parental DNA. Hence, the term 'Clone' can't be used for offspring made by amphimixis(sexual reproduction).

India is a country rich in tradition and expertise in natural medicines, spices, food preparations, biological pesticides and divers agriculture. Through painting without consist, foreign companies have collared at least 22 plants for their beneficial derivatives. Patients have been taken out on plants such as black papper (Piper nigrum), basmati rice (Oryaza sativa) Indian mustard (Brassica Campestris). Pomegranate (Punica granatum), turmeric (Curcuma domestica) and neem (Azadirachta indica). US, Japanse and German companies are the principal patenting pirates. So, the correct answer is 'All of the above'.