CBSE 12th Standard Biology Subject Biotechnology: Principles and Processes Value Based Questions 5 Marks Questions 2021
By QB365 on 31 May, 2021
QB365 Provides the Value Based Question Papers for Class 12 Biology, and also provide the detail solution for each and every Value Based Questions. Value Based Questions will help to get more idea about question pattern in every exams and also will help to get more marks in Exams
QB365 - Question Bank Software
CBSE 12th Standard Biology Subject Biotechnology: Principles and Processes Value Based Questions 5 Marks Questions 2021
12th Standard CBSE
-
Reg.No. :
Biology
-
David came to India to meet hid friend Anil. Anil introduced him to his uncle and told that David is pursuing course in biotechnology. Uncle had never heard this term earlier and was curious to know about this term. David pointed towards a big tree at the base of which were present numerous tumour-like structures and said that this is the example of natural biotechnology.
Read the above passage and answer the following questions :
(i) What is biotechnology?
(ii) How are crown gall tumours formed ?
(iii) Why was uncle curious to know about biotechnology ?(a) -
Shilpi heard about clones in cartoon serials on TV and also came to know about "Dolly" as a cloned sheep. She discussed it with her biology teacher who explained the meaning of clone and the method to raise the clones.
Read the above passage and answer the following questions :
(i) What is a clone ?
(ii) How clones are produced in plants ?
(iii) Why did Shilpi discuss the matter with her biology teacher ?(a) -
No evidence was found on a crime scene, other than only a few hair strands. The inspector wants to proceed for DNA fingerprinting but the amount of DNA is very less.
(i) In your opinion what could be the solution to this problem?
(ii) Write the basic steps of this technique.
(iii) Name the scientist who developed this technique.
(iv) What values show by the inspector?(a) -
Shubham was taught in the biotechnology class about the production of recombinant protein with the help of bioreactor. He was surprised by this new information. In the evening he discussed it with his elder brother, who is a biotechnologist. He smiled and explained him in detail.
(i) Why is bioreactors useful in industries?
(ii) What are the values shown by Shubham?(a) -
Scientists are now-a-days trying to produce the transgenic cattle in order to improve the quality and also quality of milk with special reference to its medicinal value. But there are some harmful side effects due to this procedure. Such transgenic animals get easily predispased to a variable number of diseases. This results in their shortening life span and ultimately an early death.On the basis of above information answer the following questions:
(i) Should the scientists continue their efforts with their production of such transgenic cattle.
(ii) What would be the reaction of different organization and community to such an act.
(iii) What values are not being considered by the scientists in the above situation.(a)
5 Marks
*****************************************
CBSE 12th Standard Biology Subject Biotechnology: Principles and Processes Value Based Questions 5 Marks Questions 2021 Answer Keys
-
(i) Biotechnology is the study of interchanged use of biochemistry, microbiology and engineering sciences in order to achieve technological application of the capabilities of microorganisms, cultured cells/tissue and parts thereof.
(ii) These are formed by integration of a segment of DNA of the bacterium Agrobacterium tufmefaciens into the host DNA.
(iii) His desire to know the latest developments in science. -
(i) Clones are identical copies of an organism produced by biotechnological methods.
(ii) In plants, clones are produced by clonal propagation using tissue culture technique.
(iii) Shilpi was curious to enhance her knowledge about biotechnological techniques. -
(i) Amplification of gene of interest using PCR is required.
(ii) Denaturation, annealing and extension are the basic steps of PCR.
(iii) Kary Mullis developed PCR in 1985
(iv) Honesty and sense of responsibility towards his duty. -
(i) For the large scale production of industrial products.
(ii) He is curious, inquisitive and having interest in science. -
(i) No, the scientists should not continue such efforts because only a limited amount of milk could be obtained from each cow in her short life span or before it dies. Moreover no compromise should be made with lives of the cows for the production of medicinal milk. Killing of animals in such a way or
reducing their life span for the benefit of mankind is not ethical also.
(ii) Different communities and various organizations oppose such acts. Government also has certain laws with regard to monitoring of genetic engineering researches for maintaining ethics of life.
(iii) Respect for living beings, empathy towards animals.
5 Marks
