CBSE Class 12 Biology Board Question Paper 2014 (Delhi Set-1)

Question Papers Class 12 PDF

This is the CBSE Class 12 Biology (Theory) Previous Year Question Paper from the 2014 Main Exams for the Delhi Set-1. The paper is divided into four sections: A, B, C, and D. Section A contains 8 questions worth 1 mark each, Section B has 10 questions of 2 marks each, Section C includes 9 questions of 3 marks each, and Section D comprises 3 questions carrying 5 marks each. While there is no overall choice in the paper, internal choices are provided in one 2-mark question, one 3-mark question, and all 5-mark questions. Candidates are instructed to attempt only one option in case of internal choices. Solving this board question paper is crucial for students to familiarize themselves with the exam structure, question types, and marking scheme, thereby enhancing their preparation and performance in the upcoming board examinations.

Quick info

BoardCBSE
Class12
SubjectBiology
Session2014
LanguageHindi
TypePrevious Year Question Paper
Exam typeBoard Exam

Paper pattern

The paper consists of four sections (A, B, C, D) with 8 one-mark, 10 two-mark, 9 three-mark, and 3 five-mark questions, totaling 70 marks. Internal choices are available in specific questions.

Topics covered

Paper topics

  • Innate Immunity
  • Ecosystems
  • Genetics
  • Biotechnology
  • Organismal Reproduction

Important topics

  • Terror of Bengal
  • True breeding lines
  • Cellular barriers in innate immunity
  • Gene guns
  • Stratification in forest ecosystems
  • Diapause

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Question paper text

कोड नं. 57/1/1

Code No.

Series : OSR/1

रोल नं.

परीक्षार्थी कोड को उत्तर-पुस्तिका के मुख-पृष्ठ

पर अवश्य लिखें ।

Candidates must write the Code on

the title page of the answer-book.

Roll No.

कृपया जाँच कर लें कि इस प्रश्न-पत्र में मुद्रित पृष्ट 8 हैं ।

प्रश्न-पत्र में दाहिने हाथ की ओर दिए गए कोड नम्बर को छात्र उत्तर-पुस्तिका के मुख-पृष्ठ पर लिखें ।

कृपया जाँच कर लें कि इस प्रश्न-पत्र में 30 प्रश्न हैं।

कृपया प्रश्न का उत्तर लिखना शुरू करने से पहले, प्रश्न का क्रमांक अवश्य लिखें।

इस प्रश्न-पत्र को पढ़ने के लिए 15 मिनट का समय दिया गया है । प्रश्न-पत्र का वितरण पूर्वाहन में 10.15 बजे किया जायेगा । 10.15 बजे से 10.30 बजे तक छात्र केवल प्रश्न-पत्र को पढ़ेंगे और इस अवधि के दौरान वे उत्तर-पुस्तिका पर कोई उत्तर नहीं लिखेंगे ।

Please check that this question paper contains 8 printed pages.

Code number given on the right hand side of the question paper should be written on the title page of the answer-book by the candidate.

Please check that this question paper contains 30 questions.

Please write down the Serial Number of the question before attempting it.

15 minutes time has been allotted to read this question paper. The question paper will be distributed at 10.15 a.m. From 10.15 a.m. to 10.30 a.m., the students will read the question paper only and will not write any answer on the answer-book during this period.

जीव विज्ञान (सैद्धान्तिक)

BIOLOGY (Theory)

निर्धारित समय :3 घंटे ]

[ अधिकतम अंक :70

Time allowed: 3 hours ]

[ Maximum Marks : 70

सामान्य निर्देश:

(i) सभी प्रश्न अनिवार्य हैं ।

  1. इस प्रश्न-पत्र में चार खण्ड A, B, C और D हैं । खण्ड A में 8 प्रश्न हैं जिनमें प्रत्येक का एक अंक है, खण्ड B में 10 प्रश्न हैं जिनमें प्रत्येक के दो अंक हैं, खण्ड C में 9 प्रश्न हैं जिनमें प्रत्येक के तीन अंक हैं तथा खण्ड D में 3 प्रश्न हैं जिनमें प्रत्येक के पाँच अंक हैं।
  1. कोई समग्र चयन-विकल्प (ओवरऑल चॉइस) उपलब्ध नहीं है । फिर भी, 2 अंकों वाले एक प्रश्न में, 3 अंकों वाले एक प्रश्न में और 5 अंकों वाले सभी प्रश्नों में भीतरी चयन-विकल्प दिए गए हैं । ऐसे प्रश्नों में विद्यार्थी को केवल एक ही विकल्प का उत्तर देना है।
  1. जहाँ भी आवश्यक हो, बनाए जाने वाले आरेख साफ़-सुथरे तथा समुचित रूप में नामांकित हों ।

57/1/1

[P.T.O.

General Instructions:

  1. All questions are compulsory.
  1. This question paper consists of four Sections A, B, C and D. Section A contains 8 questions of one mark each, Section B is of 10 questions of two marks each, Section C is of 9 questions of three marks each and Section D is of 3 questions of five marks each.
  1. There is no overall choice. However, an internal choice has been provided in one question of 2 marks, one question of 3 marks and all the questions of 5 marks weightage. A student has to attempt only one of the alternatives in such questions.
  1. Wherever necessary, the diagrams drawn should be neat and properly labelled.

खण्ड - A

SECTION - A

<math display="block">(1 \times 8 = 8)</math>

  1. उस जीव का नाम लिखिए जिसे “बंगाल का आतंक” कहा जाता है । Write the name of the organism that is referred to as the 'Terror of Bengal'.
  2. पौधों में विशेषकों के वंशागित प्ररूपों के अध्ययन में इस्तेमाल किए जाने वाले ‘वास्तविक प्रजनन वंशक्रम’ क्या होते हैं ? What are 'true breeding lines' that are used to study inheritance pattern of traits in plants?
  1. ऐसी किन्हीं दो प्रकार की कोशिकाओं के नाम लिखिए जो मानवों में सहज प्रतिरक्षा प्रदान करने के लिए ‘कोशिकीय अवरोधों’ के रूप में कार्य करती हैं। Name any two types of cells which act as 'Cellular barriers' to provide Innate Immunity in humans.
  1. उन परपोषी कोशिकाओं के प्ररूप का नाम लिखिए जो किसी विजातीय DNA को प्रवेश कराने के लिए जीन बंदूकों के रूप में उपयुक्त होती हैं। Mention the type of host cells suitable for the gene guns to introduce an alien DNA.
  1. किसी वन पारितंत्र में स्तरण को किस प्रकार निरूपित किया जाता है ? How is 'stratification' represented in a forest ecosystem?
  2. किसी एक ऐसे जीव का उदाहरण दीजिए जो उपरित (डायापौज़) अवस्था में चला जाया करता है, और बताइए वह ऐसा क्यों करता है । Give an example of an organism that enters 'diapause' and why.

57/1/1

Frequently asked questions

What is this document?

This is the official CBSE Class 12 Biology Previous Year Question Paper from the 2014 Main Exams (Delhi Set-1).

What is the structure of the paper?

The paper has four sections (A, B, C, D) with a total of 30 questions carrying a maximum of 70 marks. The questions are divided into 1, 2, 3, and 5 marks categories.

Are there any choices available in the questions?

Yes, there is no overall choice, but internal choices are provided in one question of 2 marks, one question of 3 marks, and all questions of 5 marks weightage.

How can solving this paper help students?

Solving this previous year question paper helps students understand the exam pattern, marking scheme, and difficulty level, improving their preparation and confidence for the board exams.

What is the duration and maximum marks for the Biology paper?

The allowed time for the Biology (Theory) paper is 3 hours, with a maximum of 70 marks.

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