Page 1 : POST MID-TERM EXAMINATION 2022, UIBJECT- BIOLOGY (044), CLASS- Xi, , , , Max Mar, Time: 2 be, , , , General instructions # All question are compulsory, , ‘The question paper consists of 13 qu, Section A: Question 1 to 6 are short answer type (1) questions «, Section B: Question 7 to 12 are short answer type (II) questions carrying 3 marks each,, Section C: Question 13 is competency / case base question carrying Starks., , There is no overall choice however internal choices have been provided in some questions. A student has, to attempt only one of the alternatives in such questions,, , «Wherever necessary, neat and properly labeled diagrams should be drawn., , jons divided into three section A,B, and C., arrying 2 marks each,, , , , , , , , Section -A [short Answer Type (1) Question], 1. Does our blood have proteases and nucleases? Justify your answer, 2. How Is the copy number of plasmid vector and yield of the recombinant protein related to each other?, , OR, , What are the features of a plasmid being used as a cloning vector’, , 3. Describe causes of cancer., , 4, Benign tumor is less dangerous than malignant tumor. Why?, , 5. Why is secondary waste water treatment referred to as biological approach?, , 6 Which organism causes amoebiasis? Write it’s symptoms., , Section ~ B [short Answer Type Il questions], 7. What are polymerase chain reactions? What are the steps involve, 8. Mention any two causes of drug abuse. Suggest some measures f, 9. What is the role of microbes in reducing environmental degener, 10, Discuss the main ideologies crucial in the biological control of diseases and pests., OR, , Name the bacteria which are used as a clot buster. Mention about it's mode of action,, , 11. Draw and explain about the life cycle of malarial parasite., , 12. Write the steps involved in Recombinant DNA technology mention its tools and justify with proper, , diagram,, , , , Mention its applications., the prevention and control of drug abuse., » caused by chemicals?, , , , , , Section-C{ Competency/ case -base Question], , , , , 13, Read the passage and answer any 5 questions, Biotechnology can be defined as the use of biological processes in industry and technology. During the past, , three decades biotechnology has gained attention due to the gene cloning process. Biotechnology application, is playing an important role in agriculture. They are used in agro-chemical based agriculture, in organic, farming, genetically ee: ¢rop ~ based agriculture, The green revolution is the milestones or result of, , , , , , , , , , , , , , , gn revolution?, that can be used in biotechnology, ture is not suitable for crop production?, , 1own to have higher resistance to pest attacks. To substantiate this, , ‘in 4 different farmlands growing Bt and non Bt-Cotton crops. The farm, , tility and were under similar climatic conditions. The histogram below, and non-Bt crops in these farm lands.