(Download) CBSE Class-12 2016-17 Sample Paper And Marking Scheme (Biotechnology)

Time: 3 Hours

Max. Marks: 70

General Instructions

• All questions are compulsory

• Question paper consists of 4 sections A,B,C and D

• Question numbers 1 to 6 are very short answer questions each carrying one mark

• Question numbers 7 to 14 are short answer questions each carrying two marks

• Question numbers 15 to 25 are also short answer questions each carrying three marks

• Question numbers 26 to 28 are long answer questions each carrying five marks

• There is no overall choice. However an internal choice has been provided in one question of three marks and two questions of five marks. You have to attempt only one of the choices in such questions.

• Use of calculators is not permitted. However, you may use log tables, if necessary.

Section A

1. How is oxygen provided in fermentors? 1

2. Why is a pilot plant essential in microbial culture works? 1

3. As a biotechnologist, what would you suggest to a farmer for successful pollination or fertilization in plants.

4. Why do plant cells in culture require nutrient media for growth. 1

5. Why is splitting of animal cells essential? 1

6. Name the first drug to be produced by mammalian cell culture? 1

Section B

7. Which type of restriction enzymes are used in RDT and why? 2

8. Explain in brief any two types of non-covalent interactions found in proteins.

9. Which type of DNA library would you prefer for liver cells. Give proper explanation for making such a library.

10. How can you maximize protein stability during purification?Write any two parameters for the same.

11. Number of genes is not related to the complexity of an organism.Give reasons.12. Calculate the generation time of a bacterial population in which the number of bacteria increase from 104 /ml to 107/ml during four hours of exponential growth.

13. Ti plasmid vector of Agrobacteriuntumefaciens is disarmed.Where is the gene of interest incorporated in Ti plasmid?

14. Why are serum and antibiotics essential as growth supplements for animal cells in culture?

Section C

15. How are pUC 19 vectors used for the selection of recombinants? 3

16. Yeast cells have been transformed with Yep vector containing our gene of interest. How would you select the recombinants over cells not containing the plasmid?

17. Describe the principle of MALDI technique. Write its two main uses in protein studies.
OR
What are the principles behind Iso electric focusing and SDS PAGE techniques? Why is 2D electrophoresis better than single dimension electrophoresis?

18. How is an extracellular protein purified from a fermentation medium? Illustrate the steps with a flowchart.

19. What are SNPs?Explain the relevance of studying these citing any two of their important applications.

20.Graphically differentiate between fed batch and continuous cultures.
Which type of culture system is most suitable for obtaining maximum amount of cellular products?

21. How does the metagenomics approach help to identify novel genes present in the environment? Explain the process.

22. What are edible vaccines? How are they better than conventional vaccines?Give any two points.

23. What are somatic hybrids?How are they produced? 3

24. Give a brief outline of the technique for production of monoclonal antibodies.Why are monoclonal antibodies preferred over serum antibodies in diagnostics and therapeutics?

(Download) CBSE Class-10 2016-17 Sample Paper Carnatic Music (Vocal)

Time allowed: 02 hours

Maximum Marks: 15

Instructions:

• Answer four questions in all.

• Question no. 2 is compulsory.

1. Name the 12 chakras in chronological order and explain briefly the Katapayadi formula.

(Download) CBSE Class-10 2016-17 Sample Paper - Carnatic Music (Melodic Instrumental)

Time allowed: 02 hours

Maximum Marks: 15

1. Compare and contrast musical form kriti and kirtana.

2. Write in notation the charanam of an adi tala kriti you have learnt.

3. Give the lakshanas with suitable sancharas of either Nata or Abhogi Raga.

4. Tick the right answer:

i. Chittasvaram is decorative anga for:

a. Kriti
b. Padam
c. Geetam
d. Javati

ii. Raga abhogi is derived from:

(Download) CBSE Class-10 2016-17 Sample Paper And Marking Scheme (Social Science)

Time Allowed: 3 Hours

Maximum Marks: 90

General Instructions:

1. There are 29 questions in all. All questions are compulsory.
2. Marks for each question are indicated against the question.
3. Questions from serial number 1 to 8 are very short answer questions of 1 mark each.
4. Questions from serial number 9 to 20 are 3 marks questions. Answers of these questions should not exceed 80 words each.
5. Questions from serial number 21 to 28 are 5 marks questions. Answers of these questions should not exceed 120 words each.
6. Question number 29 (a) is a map question of 3 marks from History and the Question number 29 (b) is a map question of 3 marks from Geography.
7. Attach the filled up maps inside your answer-book.

1. Why did French colonizers consider education as important way to civilize the Vietnamese?

Or

Why did French artist ,Frederic Sorrieu prepare a series of print based on democratic and socialist republics in 1848?

2. Name the mineral which is used to harden steel during manufacturing. 1

3. By what means does hand spun khadi provide large scale employment to weavers? 1

4. Handling of exports and imports on a large scale is done conveniently from the Kandla port. Why?

5. What do you mean by the term ‘collateral’? 1

6. Which is the most common route for investment by MNCs in countries around the world? 1

7. Reema bought a pack of brown bread, later she realized that it was expired. Which right does she have to counter this problem?

8. Which act of Indian democracy empowers the people and work as watchdog? 1

9. ‘Ideas of national unity in the early nineteenth century Europe were closely allied to the ideology of liberalism’. Support the statement with arguments.

OR

Analyze the role of students in the anti-imperial struggle in Vietnam during 19th century

10. How did the salt Satyagraha become an effective tool of resistance against British colonialism in India during 1930? Explain.

11. ‘Natural gas is an important source of clean energy’. Support the statement with examples. 3

12. “Jute industry is concentrated in the Hugli basin’. Validate the statement with three suitable reasons.

13. Discuss the hazards of mining on the life of miners and on the environment. 3

14. “Airways is the most preferred mode of transport in North-Eastern states of India.” Give three reasons to prove this preference.

15. Early Vietnamese nationalists had a close relationship with Japan and China in the first decades of the twentieth century.’ Support the statement with three examples.

OR

‘The idealistic liberal- democratic sentiment of nationalism became a narrow creed with limited ends.’ Support the statement in the context of Balkan nationalism in the early 19th century.

16. “Modern democracies cannot exist without political parties”. Evaluate the statement with the help of three relevant arguments.

17. The quality of democracy depends upon the degree of public participation. Suggest any three values essential for a citizen for effective participation.

18. Analyze the impact of globalization on world economy.

19. ‘Self-help Groups support has brought about a revolutionary change in the rural sector.’ Explain with suitable examples.

20. Why do we need to expand formal sources of credit in India? Give three reasons. 3

(Download) CBSE Class-10 2016-17 Sample Paper And Marking Scheme (NCC)

1. When was the Girls’ Division of NCC raised?

2. What are the two parts of a ‘word of command’?

3. What is ‘trekking’?

4. Name any two ‘air borne diseases’.

5. How can recycling conserve resources?

6. State the important considerations for being ‘at ease’ (vishram) position.

7. Mention any four parts of .22 Delux Rifle.

8. State the objectives of Obstacle training programme for a cadet’.

9. One of the most ghastly act of the British rulers in India took place on 13th April 1919. Identify the incident and answer the following questions;
a. Where did Jallianwala Bagh massacre incident take place?
b. Name the person who was responsible for Jallianwala Bagh massacre.

10. ‘Natural resources are mother natures’ gift to mankind’. In the light of the given statement enumerate the role of NCC in conservation of natural resources.

11. After determination of target, what are the next two steps of firing a shot?

(Download) CBSE Class-10 2016-17 Sample Paper (Mathematics)

Time Allowed: 3 Hours

Max. Marks: 90

General Instructions:

1. All questions are compulsory.
2. The question paper consists of31 questions divided into four sections A, B, C and D
3. Section A contains 4 questions of 1 mark each. Section B contains 6 questions of2 marks each. Section C contains 10 questions of 3 marks each. Section D contains 11 questions of 4 marks each.
4. Use of calculators is not permitted.

SECTION – A

(Question numbers 1 to 4 carry 1 mark each)

1. A letter is chosen at random from the letter of the "word PROBABILITY". Find the probability that it is a not a vowel.
2. Find the 17th term from the end of the AP: 1, 6, 11, 16….. 211, 216
3. A pole 6 m high casts a shadow 2√3 m long on the ground, then find the angle of elevation of the sun.
4. In the given figure PA and PB are tangents to a circle with centre O. If

SECTION – B

(Download) CBSE Class-10 2016-17 Sample Paper And Marking Scheme (Information and Communication Technology)

Time : 3 hrs

M.M: 70

1 What is the purpose of “FORM” in web page ?

2 Identify the following:
i. Software that literally spies on what is being done on a computer.
ii. It seeks to compromise a DNS server so that users can be redirected to unsafe websites.

3 Name any two activities that can be considered as a Theft of Intellectual Property.

4 Why is Phishing termed as a form of identity theft? 1

5 Proprietary software companies get a copyright for all of its software. What is its utility?

6 Name the two of the most common Web attacks that attempts to breach a website.

7 Who is a Netizen? 1

8 What is Cyberspace? 1

9 Give any two advantages of CSS. 2

10 Explain Workstation Licence. 2

11 Write the CSS code to insert the image of the butterfly with name btfly.gif as a background image for a web page

12 Write the CSS code to change the foreground color of text to #ff0000 in h1 tags

13 Write the CSS code to display the text of td tag in centre 2

14 Highlight the importance of DOM component of DHTML. 2

15 Consider the following CSS code:

h1 {font-family: arial, comic sans-serif, “Times New Roman”;}
Explain font-family.

16 Consider the following HTML code :
Father Name: <input type=”text” size = “20” name=”FName” >
Identify the internal name and explain its relevance.

17 What is a firewall? 2

18 Differentiate between GET and POST method of sending data. 2

19 List any 3 items that can be created using DHTML.

20 Observe the following code and answer the questions that follow:
<html>
<head>
<title>
Find Output
</title>
</head>
<body>
<select Multiple>
<Option> Science</Option>
<Option> Commerce</Option>
<Option> Humanities</Option>
</select>
</body>
</html>

(Download) CBSE Class-12 2016-17 Sample Paper And Marking Scheme (Agriculture)

1 State the Liebig’s law of minimum. 1

2 What is post-harvest technology? 1

3 What is swarming in honey bee? 1

4 Why landscaping is beneficial in urban area? 1

5 Name one fungal disease of honey bee.

6 What are the differences between macronutrients and micronutrients? 2

7 Write any two criteria regarding an element as essential plant nutrients. 2

8 Justify the reason behind the use of thermal processing during food processing and preservation. 2

9 Packaging is an important consideration in food processing and value addition. Justify. 2

10 What is vermicomposting? Why is it recommended to be used in the fields? 2

11 a. What are the components of Insect Pest Management?
b. Explain mechanical method of pest control.
c. Explain biological pest control with two examples.

12 Summarize the function and deficiency symptoms of boron and molybdenum. 5

13 Pre cooling of the produce soon after their harvest is one of the important components of the cool chain, which ultimately affect the shelf life of the produce. List the various methods of pre-cooling and describe any two methods.

14 Explain the zero energy cool chamber. Explain its importance in rural areas. 5

15 a. Develop a plan to set up a nursery with an area of 0.2 ha.
b. Identify the major problem associated with the packing, handling and marketing of plant sapling.

(Download) CBSE Class-12 2016-17 Sample Paper (Business Studies)

Time allowed: 3 hours

Maximum marks: 80

General Instructions:

i. Answer to questions carrying 1 marks may be from one word to one sentence.
ii. Answer to questions carrying 3 marks may be from 50-75 words.
iii. Answer to questions carrying 4-5 marks may be about 150 words.
iv. Answer to questions carrying 6 marks may be about 200 words.
v. Attempt all parts of a question together.

1 What did Taylor want to communicate through mental revolution? 1 R 1

2 What is meant by span of management? 1 R 2

3 Super Fine Rice Ltd. has the largest share of 55% in the market. The company's policy is to sell only for cash. In 2015, for the first time company's number one position in the industry has been threatened because other companies started selling rice on credit also. But the managers of Super Fine Rice Ltd. continued to rely on it's previously tried and tested successful plans which didn't work because the environment is not static. This led to decline in sales of Super Fine Rice Ltd. The above situation is indicating two limitations of planning which led to decline in it sales. Identify these limitations.

4 Why is it said that directing takes place where ever superiorsubordinate relationship exists?

5 When is financial leverage favourable?

6 ABC Ltd. issued prospectus for the subscription of its shares for ` 500 crores in 2008. The issue was oversubscribed by 20 times. The company issued shares to all the applicants on pro-rata basis. Later SEBI inspected the prospectus and found some misleading statement about the management of the company in it. SEBI imposed a penalty of ` 5 crores and banned its three executive directors for dealing in securities market for three years.

Identify the function and its type performed by SEBI in the above case.

7 Ronit Raj, a marketing manager is a patient of diabetes for which he takes medicines regularly. One day, on his tour to Patna, he met with an accident and was hospitalised. Due to doctors‟ negligence a delicate nerve of his right leg was cut rendering hum crippled throughout his life. Identify the consumer right that has been violated by the doctors under the Consumer Protection Act, 1986 in the above situation.

(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Marathi

Marathi (109)
Sample Paper- 2018
Class-XII
-----------------------------------------------------------------------------
SECTION- A (COMPREHENTION)

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(Download) CBSE Class-12 2016-17 Sample Paper (Accountancy)

Time allowed – Three hours Maximum Marks: 80

General Instructions:

1) This question paper contains two parts A and B.
2) Part A is compulsory for all.
3) Part B has two options – Financial Statements Analysis and Computerized Accounting.
4) Attempt only one option of Part B.
5) All parts of a question should be attempted at one place.

PART A: ACCOUNTING FOR PARTNERSHIP FIRMS AND COMPANIES

Q1. A, B and C are partners sharing profits and losses in the ratio of 5:3:2. C retired and his capital balance after adjustments regarding reserves, accumulated profits/ losses and gain/loss on revaluation was `2,50,000. C was paid `3,00,000 in full settlement. Afterwards D was admitted for 1/4th share. Calculate the amount of goodwill premium brought by D.

Sol: Goodwill share of C= `3,00,000-`2,50,000= `50,000
Firm’s Goodwill = 50,000x10/2= `2,50,000
D’s share in Goodwill= `2,50,000x1/4= `62,500

Q2. A and B were partners in a firm. They admitted C as a new partner for 20% share in the profits. After all adjustments regarding general reserve, goodwill, gain or loss on revaluation, the balances in capital accounts of A and B were `3,85,000 and `4,15,000 respectively. C brought proportionate capital so as to give him 20% share in the profits. Calculate the amount of capital to be brought by C.

Sol: Combined capital of A and B = `3,85,000+`4,15,000= `8,00,000
C’s share=1/5th of total capital
Remaining share= 1-1/5 =4/5
4/5= `8,00,000
C’s capital= `8,00,000x5/4x1/5= `2,00,000

Q3. A and B are partners. The net divisible profit as per Profit and Loss Appropriation A/c is `2,50,000. The total interest on partner’s drawing is `4,000. A’s salary is `4,000 per quarter and B’s salary is `40,000 per annum. Calculate the net profit/loss earned during this year.

Sol. Net Profit during the year=Divisible profits + Salary to partners – Interest on Drawings = 2,50,000+16,000+40,000-4000= `3,02,000

(Download) CBSE Class-10 2016-17 Sample Paper And Marking Scheme (Foundation of Information Technology)

Max Time: 3

hours Max Marks: 70

SECTION A

Q1) Fill in the blanks: [5]

i) Viruses, worms and trojans are collectively named ________________.

ii) Cellspacing attribute is used with ______________ tag.

iii) _____________ is a program which makes you view the information on the World Wide Web.

iv) Collection of Web Pages is called _____________.

v) Columns of a table are specified using __________tag.

vi) _________ can replicate itself automatically .

vii)_________ attribute is used with <A> tag to specify the URL of link.

viii) ___________ is type of program that is installed on a user’s computer to collect information about user.

ix) XML attribute value should always be enclosed in _______________ .

x) ______________is a program that appears harmless but actually performs malicious functions.

Q2) State True or False: [5]

i) The World Wide Web Consortium was founded to develop common standards.

ii) An XML document can have any number of child elements.

iii) No value is specified with border attribute of <img> tag.

iv) COLSPAN attribute of <TD> tag is used to merge more than one column of table.

v) Unsolicited bulk emails are called spam.

vi) Malware is Antivirus software.

vii) Because each computer differs in terms of what fonts it can display, each individual browser determines how text is to be displayed.

viii) Xml is Extended MarkupLanguage

ix) Software piracy is crime.

x) A cracker is a malicious programmer who break into secure systems.

Q3) Short Answer Questions –

i. What does an anti-virus software do? [2]

ii. What is full form of HTTP and what is its use? [2]

iii. Write the HTML code to display links of a web page in yellow colour. [2]

(Download) CBSE Class-10 2016-17 Sample Paper And Marking Scheme (Home Science)

Time: 3 Hrs Maximum

Marks: 80

General Instructions:

1. All questions are compulsory.
2. There are in all 27 questions.
3. Question no.1-5 are of 1 mark, to be answered in one or two lines.
4. Question no.6-12 are of 2 marks, to be answered in 10-20 words.
5. Question no.13-15 are of 3 marks , to be answered in 20-30 words.
6. Question no.16-23 are of 4 marks, to be answered in 40 words.
7. Question no.24-27 are of 5 marks, to be answered in 50-60 words.
8. Support your answer with suitable examples and figures wherever required.

1. Which is an example of physical fatigue:

(a) fatigue due to cycling
(b) fatigue due to a stressful day
(c) fatigue due to waiting for a bus
(d) fatigue due to spending time in a hospital

2. To remove blood stains from white cotton fabric

(a) Use hot water and salt
(b) Use hot iron
(c) Use cold water and salt
(d) Use talcum powder

3. Ironing should not be done directly on the _________.

(a) Collars
(b) Cuffs
(c) sleeves
(d) buttons

4. ___________ an example of direct income

(a) living in own house
(b) salary of individual
(c) hired maid
(d) uniform from office

5. Stress and storm is a typical phase of:

a) early childhood
b) adolescence
c) adulthood
d) old age

6. Neeta got a stain on her white shirt. She does not know the nature of stain. Tell her two ways to identify the nature the stain along with the examples.

7. Write any two advantages of using food groups in planning a balanced diet.

8. ‘Money is a pivotal resource”. Write any four ways of saving this resource while going for shopping.

9. State with example how cultural factors influence meal planning. 2

10. Convince your friend the importance of soaking cloths before scrubbing.

11. Give four tips to your friend to save her energy while rearranging her wardrobe.

12. What is AGMARK? Name any two products that are given this quality mark.

(Download) CBSE Class-10 2016-17 Sample Paper And Marking Scheme (Hindi-B)

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(Download) CBSE Class-10 2016-17 Sample Paper And Marking Scheme (Hindi-A)

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Malayalam

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Limboo

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Kashmiri

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(Download) CBSE Class-12 Sample Paper And Marking Scheme 2017-18 : Lepcha

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(Download) CBSE Class-10 2016-17 Sample Paper And Marking Scheme (English – Communicative)

Maximum marks: 70

Time-3 hours

The question paper is divided into three sections.

Section A: Reading 20 marks
Section B: Writing and Grammar 25 marks
Section C: Literature 25 marks

SECTION- A

Reading – 20 Marks

1 Read the following passage carefully:

1. Bubble wrap is a flexible transparent plastic material used for packing fragile items. It was invented by two engineers Al Fielding and Swiss inventor Marc Chavannes in Hawthorne, N.J. in 1957. However both of them were not trying to make a product to be used as packaging material. In fact they were trying to create textured wallpaper. They started out by sealing two shower curtains together in such a way that it would capture air bubbles which would make the textured appearance for their wallpaper. But this wallpaper idea didn’t sell too well.

2. Not to be deterred, they then set about finding another use for their product. The alternate use they came up with was to use it as greenhouse insulation. While bubble wrap by itself does create somewhat of an insulating effect, this idea didn’t become popular either.

3. It was three years after the initial creation of Bubble Wrap that Frederick W. Bowers, a marketer at Sealed Air, which makes Bubble Wrap, finally came up with the perfect use for their product. On October the 5, 1959, IBM announced their new 1401 variable word length computer. Bowers got the idea that Bubble Wrap could be used as a good packaging material to protect the computer while it was being shipped. He then pitched the idea to IBM and demonstrated Bubble Wrap’s protective abilities. His demonstration went over well and IBM began purchasing Bubble Wrap to protect their 1401 and other fragile products they sold and shipped.

4. One of the downsides to Bubble Wrap has always been the space it takes up during shipping and storage, for customers who are just buying the Bubble Wrap. In order to get around this problem, one of he dreams of the original inventors was that they’d someday be able to create a Bubble Wrap that customers could self inflate, as needed.

5. While originally being used primarily for packaging for electronics equipment, today the vast majority of Bubble Wrap made is used for food packaging. Because bubble wrap makes a satisfying popping sound when compressed and ruptured, it is often used as a source of amusement.

1.1Fill in the blanks:

(a) Bubble wrap was, at first, thought by the two engineers to be useful to____________.
(b) The engineers were trying to create textured wallpaper by ______________________.
(c) The alternate use of their product was____________________________________. 1x8 = 8
(d) IBM announced their new 1401 variable word length computer on __________________.
(e) IBM purchased Bubble Wrap to __________________.
(f) What was the original use of original use of Bubble Wrap ___________________________.
(g) The word which means the same as ‘exhibition’ is ________________________ ( para 3).
(h) The word which means the same as ‘cracking’ is __________________________ ( para 5).

2 Read the following passage carefully:

1. Listening is the ability to accurately receive and interpret messages in the communication process.One of the greatest gifts any of us can ever receive is the gift of listening. It is also one of the greatest gifts we can ever give. Unfortunately, it appears to be a lost art. We live in a world where everyone is talking but few are listening. What often passes for listening is simply one person pausing to collect their thoughts for their next soliloquy.

2. Hearing refers to the sounds that you hear, whereas listening requires more than that: it requires focus. Listening means paying attention not only to the story, but how it is told, the use of
language and voice, and how the other person uses his or her body. In other words, it means being aware of both verbal and non-verbal messages. Your ability to listen effectively depends on the
degree to which you perceive and understand these messages.