INDIA EXAMINATIONS: 11/26/20

Thursday, November 26, 2020

CBSE PORTAL : “(Download) CBSE Class-12 Sample Paper 2018-19 :Biotechnology” plus 3 more

(Download) CBSE Class-12 Sample Paper 2018-19 :Biotechnology
(Download) CBSE Class-12 Sample Paper 2018-19 : Biology
(Download) CBSE Class-10 Sample Paper And Marking Scheme 2017-18 : English Communicative
(Download) CBSE Class-10 Sample Paper And Marking Scheme 2017-18 : Elements of Business

(Download) CBSE Class-12 Sample Paper 2018-19 :Biotechnology

Posted: 26 Nov 2020 04:08 AM PST

Class XII

(Download) CBSE Class-12 Sample Paper 2018-19 : Biotechnology

Class XII
Biotechnology (045)
Time allowed: 3 Hours
Max. Marks: 70

General Instructions:
(i) Question paper contains four sections-A, B, C and D.
(ii) All questions are compulsory
(iii) There is internal choice in all sections. You have to attempt only one of the choices in such questions.
(iv) Question numbers 1 to 6 are very short answer questions, carrying 1 mark each.
(v) Question numbers 7 to 14 are short answer questions, carrying 2 marks each.
(vi) Question numbers 15 to 25 are also short answer questions, carrying 3 marks each.
(vi) Question numbers 26 to 28 are long answer questions, carrying 5 marks each.
(vii) Use of calculators is not permitted. However, you may use log tables, if necessary.

SECTION-A

1. 4 copies of ds DNA are subjected to polymerase chain reaction. How many copies would be obtained after 20 cycles?

1.How can we use LEU 2 gene as a selectable marker?

2. Specify the role of alkaline phosphatase in cloning.

3. Specific activity increases during subsequent steps of a protein purification scheme. How can you relate it with the purity of protein?

4. Animal cells in a culture medium were placed in a regular incubator used for growing bacterial cells. Do you expect the animal cells to grow or not?

5. What is Gene Knock out?

6. What will be the consequence if a protein is having an altered structure?

6.Expand and define PER?

Click Here To Download Full Sample Paper

Click Here To Download Full Marking Scheme

CBSE (Class XII) Previous Year Papers Printed Books

<<Go Back To Main Page

Courtesy: CBSE

CBSE Board Class-XII

सीबीएसई बोर्ड कक्षा-12

Bio Technology

CBSE 12

(Download) CBSE Class-12 Sample Paper 2018-19 : Biology

Posted: 26 Nov 2020 04:07 AM PST

(Download) CBSE Class-12 Sample Paper 2018-19 : Biology

Class: XII
Biology-044
Sample Question Paper 2018-19

General Instructions:

1. All questions are compulsory.
2. The question paper consists of four sections A, B, C and D.
3. Internal choice is given in all the sections. A student has to attempt only one of the alternatives in such questions.
4. Section– A contains 5 questions of 1 mark each.
5. Section– B has 7 questions of 2 marks each.
6. Section– C is of 12 questions of 3 marks each.
7. Section– D has 3 questions of 5 marks each.
8. Wherever necessary, the diagrams drawn should be neat and properly labelled.

SECTION-A

1. How many pollen grains and ovules are likely to be formed in the anther and the ovary of an angiosperm bearing 25 microspore mother cells and 25 megaspore mother cells respectiveyl?

1. In case of polyembryony, an embryo A develops from the synergids and the embryo B develops from the nucellus. State the ploidy of embryo A and B.

2. Give the scientific name of the source organism from which the first antibiotic was produced.

3. The prophase I stage of meiosis plays a vital role in r-DNA formation. Justify with reason

4. Name the technique by which Gene expression can be controlled with the help of RNA molecule.

5. Define Diapause

5. Define Standing Crop

Click Here To Download Full Sample Paper

Click Here To Download Full Marking Scheme

CBSE (Class XII) Previous Year Papers Printed Books

<<Go Back To Main Page

Courtesy: CBSE

CBSE Board Class-XII

CBSE Board Books

सीबीएसई बोर्ड कक्षा-12

सीबीएसई बोर्ड परीक्षा

Biology

CBSE 12

(Download) CBSE Class-10 Sample Paper And Marking Scheme 2017-18 : English Communicative

Posted: 26 Nov 2020 03:46 AM PST

(Download) CBSE Class-10 Sample Paper And Marking Scheme 2017-18 :

English Communicative

SECTION –A: READING (20 Marks)

Q1. Read the passage given below and answer the questions that follow:

1. Cricket is a global passion, played everywhere from Test match arenas to village greens, tropical beaches and dusty back lots. Cricket is the world's second most popular spectator sport after football.
2. The origin of cricket is somewhere in the Dark Ages. All research concedes that the game derived from a very old, widespread and uncomplicated pastime by which one player served up an object, be it a small piece
of wood or a ball, and another hit it with a suitably fashioned club. Cricket was first recorded in 16th-century England, and it was played in grammar schools, farm communities and everywhere in between. But things really took off when 18th-century nobles realised it was a great sport.
3. The oldest surviving set of cricket laws date from 1744 – printed on a handkerchief, naturally. It's now in the MCC Museum at Lord’s in London. The oldest permanent fixture is the annual Eton v Harrow match,played since 1805. A young Lord Byron turned out for Harrow in the first match, though history doesn't record how poetic – or “mad, bad and dangerous” – his bowling was.
4. The first international match was in 1877 when Australia beat England in Melbourne. The match was dubbed a “Test”, since the gruelling nature of playing over five days was deemed the ultimate “test” for any
side. But it was Australia’s first win on English soil – in 1882 at The Oval in London – that led to matches between the two nations being christened the Ashes. Following the defeat, newspapers published an obituary
mourning “the death of English cricket”, adding that “the body will be cremated and the ashes taken to Australia”.
5. A One Day International (ODI) is a form of limited overs cricket, played between two teams with international status, in which each team faces a fixed number of overs, usually 50. The Cricket World Cup is played in this format. The international one-day game is a late twentieth-century development. The first ODI was played on 5 January 1971 between Australia and England at the Melbourne Cricket Ground. (344words)

1.1 Attempt any eight of the following questions on the basis of the passage you have read.(1X8=8Marks)

i. According to the passage, how did the game of Cricket originate?
ii. Where can we find the oldest sets of Cricket laws?
iii. Which match did Lord Byron play?
iv. When was the first international match played?
v. Which countries played that match?
vi. Why were the matches between Australia and England titled “The Ashes”?
vii. In which format is the Cricket world cup played ?
viii. When did the ODIs begin?
ix. Which word in paragraph no.5 means the same as ‘exhausting’?

Q2.Read the passage given below and answer the questions that follow:

1. Politeness has been well defined as benevolence in trifles. It is the desire to put those whom we meet perfectly at their ease, and save them from every kind of petty discomfort and annoyance. The limited part of benevolence called politeness requires only an inclination to make them happy temporarily,while they are in our presence, and when this can be done without any sacrifice on our part or only with a slight sacrifice of personal comfort.
2. Politeness is said to be one of the important characteristics of civilised person. Politeness is the art of choosing among your thoughts. It must be implemented in every walk of life. When we deal with people elder to us we are polite. But, an honest polite person is polite with everyone, people of lower status, workers and even children. Not only with humans but also with animals we must be polite as they are our helpers.
3. Politeness is a skill. Like any other skill, you can master it with practice. The greatest enemy of politeness is ego. To be a polite person, you have to sacrifice your ego. It is difficult for an egoist to be polite. You have to imply politeness in your thinking, speech and actions. Actions work more than words. Polite actions will give fine results. Politeness will reduce your stress and boost you to be productive.Apart from your present benefits, you protect your future. Being polite makes you mentally healthy. In our daily life we come across many incidents with people nearby and ourselves.
4. Different rules of behaviour have to be observed, accordingly as we are in the street or in the drawingroom,at home or at school, in the company of friends or of strangers. There is also to be considered the great diversity of social etiquette which distinguishes one country from another.
5. Politeness, besides being a duty that we owe to others, is a valuable possession for ourselves. It costs nothing, and yet may in many cases bring much profit. The great advantage of this excellence of conduct
was very clearly expressed by Dr. Johnson, when he said that the difference between a well-bred and an ill- bred man is that one immediately attracts your liking, the other your dislike. (378 words)

2.1 On the basis of your reading of the passage, answer any four of the following questions in about 30-40 words each : (2X4=8)

i. Why is politeness called as limited part of benevolence?
ii. List some of the persons we should be polite to?
iii. Why is it difficult for an egoist to be polite?
iv. What are the benefits of being polite?
v. Which rules of behaviour are to be observed?

2.2 On the basis of your reading of the passage, fill in any two of the following blanks with appropriate words/phrases. (1X2=2)

i. Politeness is an art of choosing_________.
ii. An honest polite person is polite with ___________.
iii. To others, we _____________________.

2.3. Attempt any two of the following. Find out the words that mean the same as under: (1x2 =2)

i. ‘insignificant’ (Paragraph 1)
ii. ‘manners’ (Paragraph 4)
iii. ‘civil’(Paragraph 5)

सीबीएसई बोर्ड कक्षा-10

Sample Paper

English

Class-10

(Download) CBSE Class-10 Sample Paper And Marking Scheme 2017-18 : Elements of Business

Posted: 26 Nov 2020 03:44 AM PST

(Download) CBSE Class-10 Sample Paper And Marking Scheme 2017-18 :

Elements of Business

Q. No.	Question	Marks
1	Which of the following is not a feature of personal selling: a) develop personal relationship with customer b) personal form of communication c) flexible tool of promotion d) communicated through some media	1
2	are considered as a cushion of security. a) Equity b) Debentures c) Retained Earnings d) Trade Credit	1
3	Exchange of information between sender and receiver is known as: a) Directing b) Controlling c) Organising d) Communication	1
4	Centralised control in MNC’s implies control exercised by a) Headquarters b) Government c) Branches d) Subsidiaries	1
5	Document that is sent by the seller to a potential customer offering to sell goods or services at a certain price is known as: a) Debit note b) Credit note c) Quotation d) Accounts Payable	1
6	Debentures are type of capital of a company. a) Fluctuating b) borrowed c)Permanent d) Fixed	1
7	Invoice is prepared by in case of sale of goods a) Buyer b) Seller c) Bank d) Lender	1
8	Delhi Cloth Mills (DCM) Store is an example of which of the following: a) Mail Order House b) Multiple Shops c) Departmental Stores d) Super Markets	1
9	The process of communication is incomplete without a) Rumours b)Feedback c) Encoding d) Decoding	1
10	Which of the following is a type of Non- store retailing a) Consumer Cooperative Store b) Selling through internet c) Franchisee d) Chain stores	1
11	Which of the following is an impersonal form of communication? a) Advertising b) Marketing c) Personal Selling d) Promotion	1
12	Reliance Jio distributed free sim cards for enhancing its customer base. Which promotion technique did the company adopt? a) Contests b) Sampling c) Lucky draw d) Rebate	1
13	is not a feature of a departmental store. a) Centralised location b) Wider Range c) Central purchases d) Specialised in one line product	1
14	is an association of persons formed for carrying out business activities and has a legal status independent of its members is known as: a) Joint Hindu Family b) Partnership c) Consumer Cooperative society d) Company	1
15	Equity shareholders are called (a) Owners of the company (b) Partners of the company (c) Debtors of the company (d) Creditors of the company	1
16	Signature of a company is known as : a) Trademark of the company b) Logo of the company c) common seal d) signature of the director	1
17	Equity share capital is a permanent source of finance. Explain	3
18	State any three limitations of Mail Order Business.	3
19	Briefly explain Radio as a media of advertising.	3

20	‘Multinational Corporation creates employment in the host country’. Do you agree with the given statement? Give valid reasons in support of your answer.	3
21	Define Advertising. State any three difference between Advertising and Personal selling.	4
22	Explain the preferential rights enjoyed by Preference Shareholders over Equity Shareholders.	4
23	Discuss how a buyer can exercise the methods of ‘purchase by sample’ and ‘purchase by inspection’.	4
24	Discuss the role of sender and receiver in the communication process under a business organisation.	4
25	‘No business organisation can imagine communication activities without telephone in the modern times’. Elaborate the given statement in the light of the present day communication methodologies.	4
26	State the steps involved in selling procedure.	4
27	Automatic Vending Machine is a new and innovative way of direct retailing. In the light of given statement state the advantages of Automatic vending machine.	4
28	State any four features of a multinational corporation.	4
29	Distinguish between public and private company on the basis of the following: a. Number of members b. Prospectus c. Number of directors d. Transfer of shares e. Minimum paid up capital	5
30	Explain any two sources of owner’s fund that can be used for raising finance by a business organisation.	5
31	‘Video Conferencing has been growing rapidly as a method of communication for the present day business organisations’. Discuss the advantages of the method in the light of the given statement.	5
32	Discuss briefly the following : a) Debit Note b) Credit Note	5
33	Write short notes on :- a. Email b. Letter	5
34	Explain the following two methods of purchase of goods:- a) Instalment Method b) Hire Purchase Method	5
35	Give any five point of distinction between Departmental and Chain Stores.	5
36	Discuss briefly the following techniques of sales promotion, with suitable examples: a) Rebate b) Discount c) Refund d) Contest e) Lucky Draw	5