CBSE Class 12 Biotechnology Previous Year Question Paper 2017 Compartment Outside Delhi Set-1
This is the CBSE Class 12 Biotechnology Previous Year Question Paper for the 2017 Compartment examination, Outside Delhi, Set-1. The paper is divided into four sections: A, B, C, and D. It comprises very short answer questions (1 mark each), short answer questions (2 and 3 marks each), and long answer questions (5 marks each). All questions are compulsory, with internal choices provided in some three-mark and five-mark questions. This board question paper is an invaluable resource for students preparing for their Biotechnology board exams, allowing them to understand the exam pattern, question types, and marking scheme, thereby enhancing their preparation and performance.
Quick info
| Board | CBSE |
|---|---|
| Class | 12 |
| Subject | Biotechnology |
| Session | 2017 |
| Language | English |
| Type | Previous Year Question Paper |
| Exam type | Board Exam |
Paper pattern
The paper consists of four sections (A, B, C, D) with questions carrying 1, 2, 3, and 5 marks. Internal choices are available in some 3-mark and 5-mark questions.
Topics covered
Paper topics
- Microbial Growth
- Plant Biotechnology
- Herceptin
- Contact Inhibition
- Proteins
- c-DNA Library
- Recombinant Proteins
- Microbial Growth Media
- Foaming in Microbiological Processes
- Antifoams
- Genetic Modification
- Nutritional Quality in Cereals
- Micropropagation
- Zygotic Embryos
- Somatic Embryos
- Bioinformatics Databases
- Proteome vs Genome
- Batch Culture
- Continuous Culture
- Edible Vaccines
- Erythropoietin (EPO)
- Cancer Biopsy
- Molecular Pharming
- Protein Purification
- Southern Hybridization
- Recombinant DNA Introduction
Important topics
- Microbial Growth Measurement
- Plant Ploidy Conversion
- Herceptin Mechanism
- Contact Inhibition
- Protein Functional Diversity
- c-DNA Library Function
- Downstream Processing Challenges
- Microbial Media Types
- Foaming Control
- Nutritional Improvement in Cereals
- Micropropagation Steps
- Embryo Differentiation
- Bioinformatics Databases
- Proteome-Genome Relationship
- Culture Systems
- Edible Vaccines Advantages
- EPO Function and Detection
- Cancer Cell Identification
- Molecular Pharming Benefits
- Protein Stability
- Protein Purification Factors
- Southern Hybridization Steps
- Recombinant DNA Delivery Methods
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Question paper text
Question Paper Comp. Outside Delhi 2017 set 1 CBSE Class 12 BIO-TECHNOLOGY
General Instructions:
All questions are compulsory.
There is no overall choice. However, an internal choice has been provided in questions of three marks and five marks each. You have to attempt only one of the choices in such questions. Question paper contains four sections A, B, C and D.
Questions number 1 to 6 are very short answer questions, carrying 1 mark each.
Questions number 7 to 14 are short answer questions, carrying 2 marks each.
Questions number 15 to 25 are also short answer questions, carrying 3 marks each.
Questions number 26 to 28 are long answer questions, carrying 5 marks each.
Use of calculators is not permitted. However, you may use log tables, if necessary.
Section – A
- For measuring microbial growth, viable plate count is preferred over absorbance of cell suspension in a spectrophotometer. Why?
- Can haploid plants be converted to diploid? How?
- How does Herceptin work to treat early stage breast cancer?
- What is 'contact inhibition'?
- Among the biomolecules, proteins have maximum functional diversity. Why?
- c-DNA library contains information about expressed genes only. Justify giving reason.
Section - B
- What problems make the downstream processing of recombinant proteins difficult and costly?
- What are the essential components of a microbial growth media? Differentiate between synthetic and semi-synthetic medium used for microbial growth.
1/3
- Why is foaming undesirable in microbiological processes? Name two commonly used antifoams.
- Suggest two examples of genetic modification for improving nutritional quality in cereals.
- Enlist four defined steps of micropropagation in plants.
- Differentiate between zygotic and somatic embryos.
- Name any two databases commonly used in bioinformatics and the type of information available from each of these database.
- Why proteome of a given species is larger than its genome? Give two reasons.
Section - C
- Differentiate between Batch and Continuous culture.
- 'Edible vaccines are better than conventional vaccines or recombinant vaccines.' Give three reasons to support the statement.
- Athletes are disqualified if they test positive for erythropoietin (EPO). What is this substance? How does it act and under what condition body produces it?
- A technician in a tissue culture lab accidently forgot to put tag on petri-dish containing cells from a cancer biopsy. Which features will help him to identify this petri-dish among the others containing normal cells?
- What is Molecular Pharming? What are the advantages of producing desired proteins by this method?
- (a) What precautions should be taken to maximize protein stability during its purification steps? (two only)
- State two major factors which determine purification scheme for a given protein.
- Schematically indicate various steps of Southern hybridization technique.
- Describe any three method to introduce 'Recombinant DNA' into host cells.
2/3
Frequently asked questions
What is this document?
This is the CBSE Class 12 Biotechnology Previous Year Question Paper from the 2017 Compartment examination, Outside Delhi, Set-1.
What is the structure of the question paper?
The paper is divided into four sections (A, B, C, D) and includes questions of 1, 2, 3, and 5 marks, with internal choices in some higher-mark questions.
How does solving this previous year paper help?
Solving this previous year question paper helps students understand the CBSE exam pattern, question difficulty, and time management, improving their preparation and confidence.
What is the total duration and maximum marks for this paper?
The provided text does not explicitly state the total duration or maximum marks for the paper.
What are the key topics covered in this Biotechnology paper?
The paper covers topics such as microbial growth, plant biotechnology, recombinant proteins, bioinformatics, molecular farming, and genetic engineering techniques.
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