CBSE Class 12 Biology Board Question Paper 2015 (Compartment Exams Delhi-Set-1)

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Question Papers Class 12 PDF

This is the CBSE Class 12 Biology (Theory) Previous Year Question Paper from the 2015 Compartment Exams, Delhi-Set-1. The paper is divided into five sections (A, B, C, D, E) containing a total of 26 questions and is worth a maximum of 70 marks, to be completed in 3 hours. Section A has 5 very short answer questions (1 mark each), Section B has 5 short answer type I questions (2 marks each), Section C has 12 short answer type II questions (3 marks each), Section D has 1 value-based question (4 marks), and Section E has 3 long answer questions (5 marks each). Internal choices are provided in one 2-mark question, one 3-mark question, and all three 5-mark questions. Solving this board question paper is crucial for understanding the exam pattern and improving performance.

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Quick info

BoardCBSE
Class12
SubjectBiology
Session2015
LanguageHindi
TypePrevious Year Question Paper
Exam typeBoard Exam

Paper pattern

The question paper consists of 26 questions across five sections (A, B, C, D, E). Section A has 5 questions of 1 mark each, Section B has 5 questions of 2 marks each, Section C has 12 questions of 3 marks each, Section D has 1 question of 4 marks, and Section E has 3 questions of 5 marks each. Internal choices are available in specific questions.

Topics covered

Paper topics

  • Transcription
  • Plant Interactions
  • Chromosomal Disorders
  • Flower Anatomy
  • Reproductive Biology
  • Genetics
  • Biotechnology
  • Evolution
  • Ecology
  • Human Health and Disease

Important topics

  • Enzyme in transcription
  • Cuscuta-shoe flower interaction
  • Turner's Syndrome
  • Gynoecium structure in Papaver and Michelia
  • DNA replication
  • Gene expression
  • Biotechnology applications
  • Evolutionary concepts
  • Ecological interactions
  • Human diseases

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Question paper text

SET - 1

Series: SSO/1/C

कोड नं.

Code No. 57/1/1

रोल नं.

परीक्षार्थी कोड को उत्तर-पुस्तिका के मुख-पृष्ट

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 मृद्रित पृष्ठ 8 हैं।

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

कृपया जाँच कर लें कि इस प्रश्न-पत्र में 26 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 26 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) प्रश्न-पत्र में पाँच खण्डों में 26 प्रश्न दिए गए हैं । सभी प्रश्न अनिवार्य हैं ।

  1. खण्ड – क में प्रश्न संख्या 1 से 5 अति लघुत्तर प्रश्न हैं । प्रत्येक प्रश्न एक अंक का है ।
  2. खण्ड – ख में प्रश्न संख्या 6 से 10 लघुत्तर प्रश्न I प्रकार के हैं । प्रत्येक प्रश्न दो अंक का है ।
  3. खण्ड – ग में प्रश्न संख्या 11 से 22 लघुत्तर प्रश्न II प्रकार के हैं । प्रत्येक प्रश्न तीन अंक का है ।
  4. खण्ड – घ में प्रश्न संख्या 23 मूल्याधारित प्रश्न चार अंकों का है।
  5. खण्ड – ङ में प्रश्न संख्या 24 से 26 दीर्घ उत्तर प्रश्न हैं, प्रत्येक प्रश्न पाँच अंक का है ।
  1. प्रश्न-पत्र में कोई समग्र पर विकल्प नहीं है, फिर भी दो अंक के एक प्रश्न, तीन अंक के एक प्रश्न और पाँच अंकों के तीन प्रश्नों के भीतरी विकल्प दिए गए हैं । प्रत्येक परीक्षार्थी को ऐसे प्रश्नों के दो विकल्पों में से एक प्रश्न हल करना है ।

57/1/1 1 [P.T.O.

General Instructions:

  1. There are a total of 26 questions and five sections in the question paper. All questions are compulsory.
  2. Section A contains question number 1 to 5, Very Short Answer type questions of one mark each.
  3. Section B contains question number 6 to 10, Short Answer type I questions of two marks each.
  4. Section C contains question number 11 to 22, Short Answer type II questions of three marks each.
  5. Section D contains question number 23, Value Based Question of four marks.
  6. Section E contains question number 24 to 26, Long Answer type questions of five marks each.
  1. There is no overall choice in the question paper, however, an internal choice is provided in one question of two marks, one question of three marks and all three questions of five marks. An examinee is to attempt any one of the questions out of

the two given in the question paper with the same question number.

खण्ड – क

SECTION - A

  1. सुकेन्द्रकी में उस एंज़ाइम का नाम बताइए जो hnRNA का अनुलेखन (ट्रांसक्रिप्शन) करता है । 1 Name the enzyme that transcribes hnRNA in eukaryotes.
  2. कस्कृटा और गुड़हल के पौधों के बीच पारस्परिक क्रिया को आप क्या नाम देंगे ? Name the interaction that exists between <u>Cuscuta</u> and shoe-flower plant.
  3. टर्नर सिंड्रोम के क्रोमोसोमीय विकार क्या हैं ? बताइए । State the chromosomal defect in individuals with Turner's syndrome.

4. यहाँ दिए गए दो चित्रों में <u>पैपेवर</u> (A) और <u>माइकेलिया</u> (B) के पुष्पों के जायांग (स्त्रीकेसर) दर्शाए गए हैं । इनके अंडाशयों की संरचना में अंतर बताइए । 2 57/1/1

Frequently asked questions

What is this document?

This is the CBSE Class 12 Biology Board Previous Year Question Paper from the 2015 Compartment Exams, Delhi-Set-1.

What is the total marks and duration for the exam?

The exam is for a maximum of 70 marks and has a duration of 3 hours.

How is the Biology question paper structured?

The paper is divided into five sections (A, B, C, D, E) with varying types and marks for questions, including very short, short, value-based, and long answer questions.

Are there any choices available in the question paper?

Yes, internal choices are provided in one 2-mark question, one 3-mark question, and all three 5-mark questions.

How does solving this previous year paper help students?

Solving this previous year question paper helps students understand the board exam pattern, identify important topics, and improve their marks in the final examination.

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