CBSE Class 12 Biology Marking Scheme

CBSE Class 12 Biology Marking Scheme

Biology is one of the most important subjects in class 12. Students aspiring to make a career in the medical field, pharmacy, dental, etc., should have scored good marks in their CBSE class 12 board examination. The CBSE Class 12 Biology marking scheme is designed by the Central Board of Secondary Education following certain guidelines. The marking scheme is the proper division of marks according to the Units. The CBSE Marking Scheme make students familiar with the marks weightage and questions paper design. Here we have also provided the evaluation scheme of the Biology paper. Knowing this, students can easily plan their studies effectively and in an organised manner.

The board has reduced the CBSE Class 12 Biology Syllabus by 30% for the 2020-21 academic session. The decision has been taken in regard to the widespread COVID-19 pandemic. Now, the board has released the CBSE Class 12 Biology Sample Paper 2021 with a marking scheme. The sample papers are based on the revised syllabus. Also, a few changes have been made to the exam pattern. So, students are advised to solve the Biology sample paper 2021 first and then go through the marking scheme. This will help in expressing the answers in a better way during the board exam.

CBSE Class 12th Marking Scheme: Biology

Unit Title Marks
VI Reproduction 14
VII Genetics and Evolution 18
VIII Biology and Human Welfare 14
IX Biotechnology and its Applications 12
X Ecology and Environment 12
Total 70

CBSE Class 12 Biology Question Paper Pattern 2021

The Biology paper will be of 70 Marks and 3 hours of time duration. Students can have a look at the paper pattern below.

Section No. of Questions Marks per Question
A 14 1 Mark Each
2 Case-Based Questions
B 9 2 Marks Each
C 5 3 Marks Each
D 3 5 Marks Each

CBSE Class 12 Biology Assessment Areas (Theory Paper)

The type of questions based on which the assessment will be done is mentioned below. Also, an internal choice of approximately 33% would be provided to the students in the exam.

  1. Very Small Answer Questions, including MCQs
  2. Assertion – Reasoning-type questions
  3. Small Answer Question
  4. Large Answer Question-I
  5. Large Answer Question-II
  6. Source-based/ Case-based/ Passage-based/ Integrated assessment questions
Competencies
Demonstrate Knowledge and Understanding 50%
Application of Knowledge / Concepts 30%
Analyse, Evaluate and Create 20%

CBSE Class 12 Biology Practical Evaluation Scheme

Evaluation Scheme Marks
One Major Experiment 5
One Minor Experiment 4
Slide Preparation 5
Spotting 7
Practical Record + Viva Voce Credit to the students’ work over
the academic session may be given
4
Investigatory Project and its
Project Record + Viva Voce
5
Total 30

Stay tuned with BYJU’S to get the latest update on the CBSE exam along with the syllabus, date sheet, sample papers, CBSE previous years question papers, and more.

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