Advertisement Remove all ads

Biology (Theory) Set 1 2016-2017 ISC (Science) Class 12 Question Paper Solution

Advertisement Remove all ads
Biology (Theory) [Set 1]
Marks: 70Academic Year: 2016-2017
Date & Time: 24th March 2017, 2:00 pm
Duration: 3h
  • Attempt all questions in part 1.
  • Attempt six questions in Part 2.
  • Choosing two questions from each of the three sections A,B and C.

Part 1
[20]1 | Attempt all questions:
[4]1.a
[1]1.a.i

Answer the following question:

Why do Green plants start evolving CO2 instead of O2, at high temperatures?

Concept: Ecosystem Services
Chapter: [5.02] Ecosystem
[1]1.a.ii

Answer the following question:

Define Apomixis.

Concept: Apomixis And Polyembryony
Chapter: [1.02] Sexual Reproduction in Flowering Plants
[1]1.a.iii

Answer the following question: 

What is a Recon?

Concept: Introduction of Molecular Basis of Inheritance
Chapter: [2.02] Molecular Basis of Inheritance
[1]1.a.iv

Answer the following question: 

Why are the spores of Bacillus thuringiensis used as bioinsecticide? 

Concept: Microbes as Biocontrol Agents
Chapter: [3.03] Microbes in Human Welfare
[4]1.b
[1]1.b.i

Choose the correct option of the following question:

Initiation codon of protein synthesis in Eukaryotes is:

GUA

GGA

CCA

AUG

Concept: Transcription - Introduction of Transcription
Chapter: [2.02] Molecular Basis of Inheritance
[1]1.b.ii

Choose the correct option of the following question:

Type of Interaction where an individual sacrifices its own welfare (life) for the benefit of another animal of its own species is:

Altruism

Scavenging

Protocooperation

Commensalism

Concept: Pre-fertilisation - Structures and Events - Pollination
Chapter: [1.02] Sexual Reproduction in Flowering Plants
[1]1.b.iii

Choose the correct option of the following question:

Wings of Insect and Birds are examples of :

Analogous

Homologous

Vestigial

Atavism

Concept: Evidences for Evolution
Chapter: [2.03] Evolution
[1]1.b.iv

Choose the correct option of the following question:

The pressure of the cell contents on the cell wall is known as:

Wall pressure

Osmotic pressure

Turgor pressure

Diffusion pressure

Concept: Single Cell Protein (SCP)
Chapter: [3.02] Strategies for Enhancement in Food Production
[4]1.c
[1]1.c.i

Give a scientific term for the following:

An act of expelling the full-term foetus from mother’s uterus at the end of gestation.

Concept: Parturition and Lactation
Chapter: [1.03] Human Reproduction
[1]1.c.ii

Give a scientific term for the following:

Entry of pollen tube into an ovule through integuments.

Concept: Pre-fertilisation - Structures and Events - The Pistil, Megasporangium (Ovule) and Embryo Sac
Chapter: [1.02] Sexual Reproduction in Flowering Plants
[1]1.c.iii

Give a scientific term for the following: 

An alternative form of the single gene which influences the same character and produces different expressions in different individuals a species.

Concept: Deviations from Mendelism - Incomplete Dominance, Co-dominance, Multiple Alleles and Inheritance of Blood Groups, Pleiotropy
Chapter: [2.01] Principles of Inheritance and Variation
[1]1.c.iv

Give a scientific term for the following:

The study of human population covering all aspects and parameters.

Concept: Population Explosion and Birth Control
Chapter: [1.04] Reproductive Health
[4]1.d
[1]1.d.i

Expand the following abbreviation MTP.

Concept: Medical Terminat on of Pregnancy (MTP)
Chapter: [1.04] Reproductive Health
[1]1.d.ii

Expand the following abbreviation IW.

Concept: Double Fertilisation
Chapter: [1.02] Sexual Reproduction in Flowering Plants
[1]1.d.iii

Expand the following abbreviation HIV.

Concept: AIDS
Chapter: [3.01] Human Health and Diseases
[1]1.d.iv

Expand the following abbreviation DPD.

Concept: Introduction of Microbes in Human Welfare
Chapter: [3.03] Microbes in Human Welfare
[4]1.e
[1]1.e.i

Name the scientists who have contributed to the following: 

Discovered the fossil of Cro-Magnon man.

Concept: Origin and Evolution of Man
Chapter: [2.03] Evolution
[1]1.e.ii

Name the scientists who have contributed to the following:

Classified active and passive absorption of water by roots.

Concept: Origin and Evolution of Man
Chapter: [2.03] Evolution
[1]1.e.iii

Name the scientists who have contributed to the following:

Reported Haemophilia.

Concept: Origin and Evolution of Man
Chapter: [2.03] Evolution
Advertisement Remove all ads
[1]1.e.iv

Name the scientists who have contributed to the following:

Discovered double fertilization.

Concept: Double Fertilisation
Chapter: [1.02] Sexual Reproduction in Flowering Plants
Part II SECTION A
[5]2
[3]2.a
[1]2.a.i

Differentiate between Apes and Man with respect to the following characteristic: Posture.

Concept: Origin and Evolution of Man
Chapter: [2.03] Evolution
[1]2.a.ii

Differentiate between Apes and Man with respect to the following characteristic: Brow ridges.

Concept: Origin and Evolution of Man
Chapter: [2.03] Evolution
[1]2.a.iii

Differentiate between Apes and Man with respect to the following characteristic: Cranial capacity.

Concept: Origin and Evolution of Man
Chapter: [2.03] Evolution
[1]2.b

Define the protobionts.

Concept: Introduction of Evolution and Origin of Universe and Earth
Chapter: [2.03] Evolution
[1]2.c

What is cognogeny?

Concept: Introduction of Evolution and Origin of Universe and Earth
Chapter: [2.03] Evolution
[5]3
[3]3.a

Explain any three molecular (genetic) evidences in favour of organic evolution.

Concept: Evidences for Evolution
Chapter: [2.03] Evolution
[1]3.b

Define biogenesis.

Concept: Origin of Life
Chapter: [2.03] Evolution
[1]3.c

Define fossils. 

Concept: Evidences for Evolution
Chapter: [2.03] Evolution
[5]4
[3]4.a

List any three drawbacks of Darwinism.

Concept: Darwin'S Contribution
Chapter: [2.03] Evolution
[1]4.b

State Hardy-Weinberg’s principle.

Concept: Hardy - Weinberg'S Principle
Chapter: [2.03] Evolution
[1]4.c

Differentiate between Directional natural selection and Disruptive natural selection. 

Concept: Hardy - Weinberg'S Principle
Chapter: [2.03] Evolution
Section B
[10]5
[4]5.a

Give four anatomical differences between a dicot leaf and monocot leaf.

Concept: Pre-fertilisation - Structures and Events - Stamen, Microsporangium and Pollen Grain
Chapter: [1.02] Sexual Reproduction in Flowering Plants
[4]5.b

Briefly describe the secretory phase of the menstrual cycle.

Concept: Menstrual Cycle
Chapter: [1.03] Human Reproduction
[2]5.c
[1]5.c.i

Define: Menarche

Concept: Menstrual Cycle
Chapter: [1.03] Human Reproduction
[1]5.c.ii

Define:  Actinomorphic symmetry

Concept: Introduction of Sexual Reproduction in Flowering Plants
Chapter: [1.02] Sexual Reproduction in Flowering Plants
[10]6
[4]6.a

Give a graphic representation of the Hatch Slack or C4 cycle.

Concept: Nutrient Cycling
Chapter: [5.02] Ecosystem
[4]6.b
Advertisement Remove all ads
[2]6.b.i

Give two significant difference between:

Transpiration and Guttation

Concept: Introduction and Types of Ecosystem
Chapter: [5.02] Ecosystem
[2]6.b.ii

Give two significant differences between:

Chlorophyll ‘a’ and Chlorophyll b ‘

Concept: Introduction and Types of Ecosystem
Chapter: [5.02] Ecosystem
[2]6.c
[1]6.c.i

Define the Amniocentesis.

Concept: Reproductive Health - Problems and Strategies
Chapter: [1.04] Reproductive Health
[1]6.c.ii

Define the Polyembryony.

Concept: Apomixis And Polyembryony
Chapter: [1.02] Sexual Reproduction in Flowering Plants
[10]7
[4]7.a

Describe K+ transport stomatal mechanism.

Concept: Introduction of Molecular Basis of Inheritance
Chapter: [2.02] Molecular Basis of Inheritance
[4]7.b

Draw a neat labelled diagram of L.S. of anatropous ovule.

Concept: Pre-fertilisation - Structures and Events - Stamen, Microsporangium and Pollen Grain
Chapter: [1.02] Sexual Reproduction in Flowering Plants
[2]7.c
[1]7.c.i

Differentiate between the following :

Spermatogenesis and oogenesis

Concept: Sexual Reproduction - Pre-fertilisation Events - Gametogenesis
Chapter: [1.01] Reproduction in Organisms
[1]7.c.ii

Differentiate between the following :

Apocarpous ovary and syncarpous ovary

Concept: Microscopic Anatomy of Ovary
Chapter: [1.03] Human Reproduction
Section C
[10]8
[4]8.a

Explain Pleiotropy with reference to phenylketonuria.

Concept: Deviations from Mendelism - Incomplete Dominance, Co-dominance, Multiple Alleles and Inheritance of Blood Groups, Pleiotropy
Chapter: [2.01] Principles of Inheritance and Variation
[4]8.b

Explain the mechanism of transcription in a prokaryotic cell.

Concept: Transcription - Introduction of Transcription
Chapter: [2.02] Molecular Basis of Inheritance
[2]8.c

Explain Rh factor incompatibility during pregnancy.

Concept: Pregnancy and Embryonic Development
Chapter: [1.03] Human Reproduction
[10]9
[4]9.a

Discuss the various In-situ and Ex-situ strategies for conservation of biodiversity. 

Concept: Deforestation
Chapter: [5.04] Environmental Issues
[4]9.b

List any four applications of tissue culture. 

Concept: Tissue Culture
Chapter: [3.02] Strategies for Enhancement in Food Production
[2]9.c
[1]9.c.i

Mention the causative agent and the preventive measures for the following: Gonorrhoea

Concept: Sexually Transmitted Diseases (STDs)
Chapter: [1.04] Reproductive Health
[1]9.c.ii

Mention the causative agent and the preventive measures for the following: Pneumonia.

Concept: Common Diseases in Humans
Chapter: [3.01] Human Health and Diseases
[10]10
[4]10.a

Name the components of lac operon and discuss their role.

Concept: Regulation of Gene Expression - The Lac Operon
Chapter: [2.02] Molecular Basis of Inheritance
[4]10.b

Give the importance/significance of transgenic animals.

Concept: Transgenic Animals
Chapter: [4.02] Biotechnology and Its Applications
[2]10.c
Advertisement Remove all ads
[1]10.c.i

Give one significant difference between:

Electroporation and Gene Gun.

Concept: Principles of Biotechnology
Chapter: [4.01] Biotechnology - Principles and Processes
[1]10.c.ii

Give one significant difference between :

ECG and EEG

Concept: Tissue Culture
Chapter: [3.02] Strategies for Enhancement in Food Production
Advertisement Remove all ads

Request Question Paper

If you dont find a question paper, kindly write to us





      View All Requests

Submit Question Paper

Help us maintain new question papers on Shaalaa.com, so we can continue to help students




only jpg, png and pdf files

CISCE previous year question papers Class 12 Biology (Theory) with solutions 2016 - 2017

     CISCE Class 12 Biology (Theory) question paper solution is key to score more marks in final exams. Students who have used our past year paper solution have significantly improved in speed and boosted their confidence to solve any question in the examination. Our CISCE Class 12 Biology (Theory) question paper 2017 serve as a catalyst to prepare for your Biology (Theory) board examination.
     Previous year Question paper for CISCE Class 12 Biology (Theory)-2017 is solved by experts. Solved question papers gives you the chance to check yourself after your mock test.
     By referring the question paper Solutions for Biology (Theory), you can scale your preparation level and work on your weak areas. It will also help the candidates in developing the time-management skills. Practice makes perfect, and there is no better way to practice than to attempt previous year question paper solutions of CISCE Class 12.

How CISCE Class 12 Question Paper solutions Help Students ?
• Question paper solutions for Biology (Theory) will helps students to prepare for exam.
• Question paper with answer will boost students confidence in exam time and also give you an idea About the important questions and topics to be prepared for the board exam.
• For finding solution of question papers no need to refer so multiple sources like textbook or guides.
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×