CBSE Class 12 Biology Board Exam: Last Minute Tips

all the best01The Central Board of Secondary Education (CBSE) will conduct the Class 12 Biology Board Exam on Monday, March 21, 2016. You must be busy with your last minute revisions and trying to get the most out of your study hours these days.

To enable you further in your preparation, Team Meritnation brings you some important Last Minute Tips that you must not miss. So go through these tips and important topics that will help you prepare intelligently for the exams.

Total Marks : 70

Important Topics:

Chapter 1 – Reproduction in Organisms

  1. Modes of asexual reproduction

Chapter 2 – Sexual Reproduction in Flowering Plants

  1. Pre-fertilisation Events
  2. Inbreeding depression
  3. Double fertilisation

Chapter 3 – Human Reproduction

  1. Gametogenesis, Fertilisation and Events of Pregnancy

Chapter 4 – Reproductive Health

  1. Birth control methods
  2. Sexually transmitted diseases
  3. Techniques to treat infertility

Chapter 5 – Principles of Inheritance and Variation

  1. Mendel’s Laws
  2. Post-Mendelian Genetics
  3. Chromosomal Disorders and Pedigree analysis

Chapter 6 – Molecular Basis of Inheritance

  1. Structure of DNA
  2. Experiments of F. Griffith, Hershey & Chase and Meselson & Stahl
  3. Mechanism- replication, transcription and translation
  4. Salient features of genetic code
  5. lac operon

Chapter 7 – Evolution

  1. Homologous and analogous organs
  2. Adaptive radiation
  3. Hardy-Weinberg principle

Chapter 8 – Human Health and Disease

  1. Life cycle of Plasmodium
  2. Causative agents of different diseases and their mode of transmission
  3. Difference between innate and adaptive immunity
  4. AIDS and Drug Abuse

Chapter 9 – Strategies for Enhancement in Food Production

  1. Inbreeding and outbreeding
  2. Single cell protein

Chapter 10 – Microbes in Human Welfare

  1. Microbes and their products
  2. Sewage treatment
  3. Biogas production

Chapter 11 – Biotechnology: Principles and Processes

  1. Restriction enzymes
  2. Cloning vectors
  3. Transformation processes

Chapter 12 – Biotechnology and Its Applications

  1. Bt cotton
  2. RNA interference
  3. Gene therapy
  4. Genetically engineered insulin

Chapter 13 – Organisms and Population

  1. Population interactions

Chapter 14 – Ecosystem

  1. Pyramids of number, energy and biomass
  2. Nutrient cycling
  3. Ecological Succession

Chapter 15 – Biodiversity and Conservation

  1. Causes of biodiversity losses

Chapter 16 – Environmental Issues

  1. Air pollution
  2. Eutrophication and Biomagnification

Marking Scheme

Genetics & Evolution

Ecology & Environment

Human Welfare & Biotechnology

Watch out this space for more such videos. You can view the whole “Power Tips in Less Than 100 Seconds” series on our YouTube Channel.


Last Moment Merit Tips:

a) Stay calm: When you know you have been preparing for weeks for this exam, so you should not be so tensed about it. Try to be confident and calm.
b) Do not skip your morning meal: Do take your first meal in the morning before the exam. It kick-starts your brain and makes it exam-ready. Try avoiding caffeine as it tends to make your thinking less clear.
c) Do not withdraw socially: Sharing your feelings with your friends and family is the most relaxing thing for your ‘tensed-up’ brain.
d) No last-minute cramming: We understand that you often lose your calm before the exam and land up cramming up those topics that are not even relevant. This makes it difficult for the brain to recollect what it absorbed a day before.
e) Avoid discussing the question paper after the exam: This is what we all do every time when we walk out of an exam – asking our friends what did they put as answers for certain questions. There is no point worrying about what’s done and dusted, when you have the next exam to prepare for.

Please take a moment to spread these tips with your friends. After all, Knowledge is the only thing that grows when shared! :) 

Important Resources

> 5 Common Exam Mistakes Students Make

> Things To Do In Your 5-Minute Break

> 10 Tips to Study Smart and Save Time

> Gearing Up For SA 2

> Creating An Ideal Time Table For Your Board Exam


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