Notopedia is a nonprofit organization with a mission to provide free learning support to all. Click here to donate or volunteer
Notopedia has a mission to provide free learning support. Click here to donate or volunteer.
OFFICIAL SYLLABUS
Biology (Theory)
UNIT-I I REPRODUCTION
Reproduction in organisms :
Asexual and sexual reproduction. Sexual reproduction in flowering plants : Structure of flower, pollination, fertilization, development of seeds and fruits, apomixis and polyembryony.
Human reproduction :
Reproductive system in male and female, menstrual cycle, production of gametes, fertilization, implantation, embryo development, pregnancy, parturition and lactation.
Reproductive Health :
Population and birth control, contraception and MTP; sexually transmitted diseases, infertility.
UNIT-II
|| GENETICS AND EVOLUTION
Mendelian inheritance. Chromosome theory of inheritance, deviations from Mendelian ratio (gene interactionincomplete dominance, co-dominance, multiple alleles). Sex determination in human beings: XX, XY. Linkage and crossing over. Inheritance pattern : Mendelian disorders and chromosomal disorders in humans. DNA and RNA, search for genetic material, replication, transcription, genetic code, translation. Gene expression and regulation. Genome and Human Genome Project. DNA fingerprinting. Evolution: Origin of life, theories and evidences, adaptive radiation, mechanism of Evolution, origin and evolution of man.
UNIT -III
III BIOLOGY AND HUMAN WELFARE
Basic concepts of immunology, vaccines. Pathogens, Parasites Cancer and AIDS Adolescence and drug /alcohol abuse. Plant breeding, tissue culture, single cell protein, food production, animal husbandry. Mircobes in household food processing, industrial production, sewage treatment, energy generation, biocontrol agents and biofertilizers.
UNIT -IV
IV BIOTECHNOLOGY AND ITS APPLICATION
Principles and Processes; Recombinant DNA technology; Application in Health and Agriculture; genetically modified (GM) organisms; biosafety issues.
UNIT -V
V ECOLOGY & ENVIRONMENT
Ecosystems : components, types, energy flow, nutrient cycling and ecosystem services. Organism and Population : Organisms and its environment, population and ecological adaptations. Centres of diversity and conservation for biodiversity, Biosphere reserves, National parks and sancturaries. Environmental issues.
Practicals
1. Experiments and spotting
2. Record of one investigatory project and Viva based on the project
3. Class record and Viva based on experiments
List of Experiments
1. Disect the given flower and display different whorls. Disect anther and ovary to show number of chambers.
2. Study pollen germination on a slide.
3. Collect and study soil from at least two different sites and study them for texture, moisture content, pH and water holding capacity of soil. Correlate with the kinds of plants found in them.
4. Collect water from two different water bodies around you and study them for pH, clarity and presence of any living organisms.
5. Study the presence of suspended particulate matter in air at the two widely different sites.
6. Study of plant population density by quadrat method.
7. Study of plant population frequency by quadrat method.
8. Prepare a temporary mount of onion root tip to study mitosis
9. To study the effect of the different temperatures and three different pH on the activity of salivary amylase on starch.
Study/observation of the following (Spotting)
1. Study of flowers adapted to pollination by different agencies (wind, insect)
2. Study of pollen germination on stigma through a permanent slide.
3. Study and identify stages of gamete development i.e. T.S. testis and T.S. ovary through permanent slides. (from any mammal)
4. Study meiosis in onion bud cell or grass hopper testis through permanent slide.
5. Study of T.S. of blastula through permanent slide.
6. Study Mendelian inheritance using seeds of different colour/size of any plant.
7. Study prepared pedigree charts of genetic traits such as rolling of tongue, blood groups, widow’s peak, colour blindness.
8. Exercise on controlled pollination-Emasculation, tagging and bagging.
9. To identify common disease causing organisms like Ascaris, Entamoeba, Plasmodium, Ringworm through permanent slide or specimen. Comment on symptoms of diseases that they cause.
10. Study two plants and two animals found in xerophytic condition. Comment upon their adaptations/morphological.
11. Study plants and animals found in aquatic conditions. Comment upon their adaptations/ morphological.
For more information click this link: Click here
Paper Format
Paper Type - Theory + Practical
Paper Marks - Theory (70 Marks) + Practical (30 Marks)
Maximum Total marks - 70 + 30 = 100 Marks
Time duration - 3 hours (Only For Theory Exam)
Unit & their Weightage
S.No. | Unit | Total Weightage |
1. | Reproduction | 14 |
2. | Genetics and evolution | 18 |
3. | Biology and human Welfare | 14 |
4. | Biotechnology and its applications | 10 |
5. | Ecology and environment | 14 |
Total | 70 |
Paper II: Practical
Evaluation Scheme | Marks |
Experiments and Spotting | 20 |
Record of one investigatory project and Viva based on the project | 05 |
Class record and Viva based on experiments | 05 |
Total | 30 |
For More Information:- Click Here
Conditions of eligibility for admission to class XII
1. Candidates who have been studying in a School recognised by or affiliated to this Board or any other recognised Board of Secondary Education in India.
2. Candidates can not take admission directly in class XII.
3. Candidates had completed a regular course of study for class XI and passed class XI examination from a school affilicated to this Board.
4. The candidates percentage for attendance should be 75% so that the Board to make him/her eligible for the Examinations.
5. Candidate can be admitted to a school only on the transfer of the parents(s) or shifting of their families from one place to another, after procuring from the student the marksheet and the Transfer Certificate duly countersigned by the Educational Authorities of the Board Concerned.
6. There is no age limit for candidates taking the Examination.
7. Candidate should have doucments in support of his having passed the qualifying or equivalent qualifying examination.
TIME TABLE 2023
Date & Day | Subject | Time Duration |
Saturday 01 April 2023 | Biology | 10:00 AM to 01:00 PM (3 Hrs.) |
Date & Day | Subject | Time Duration |
Thursday 16 March 2023 | Hindi, Agriculture Hindi (Only for Agriculture Part II) | 10:00 AM to 01:00 PM (3 Hrs.) |
Saturday 18 March 2023 | Geography, Geology | 10:00 AM to 01:00 PM (3 Hrs.) |
Monday 20 March 2023 | Urdu, Punjabi, Physics, Accountancy Agronomy Paper I (Only for Agriculture Part I) agronomy Paper VI (Only for Agriculture Part II) | 10:00 AM to 01:00 PM (3 Hrs.) |
Tuesday 21 March 2023 | Sociology | 10:00 AM to 01:00 PM (3 Hrs.) |
Thursday 23 March 2023 | Political Science Agricultural Botony Paper II (Only for Agriculture Part I) Agricultural Economics Paper VII (Only for Agriculture Part II) | 10:00 AM to 01:00 PM (3 Hrs.) |
Friday 24 March 2023 | Drawing & Painting | 10:00 AM to 01:00 PM (3 Hrs.) |
Saturday 25 March 2023 | Mathematics | 10:00 AM to 01:00 PM (3 Hrs.) |
Monday 27 March 2023 | Sanskrit, Agricultural Physics and Climatology Paper III (Only for Agricultural Part I) Agricultural Zoology Paper VIII (Only for Agriculture Part II) | 10:00 AM to 01:00 PM (3 Hrs.) |
Tuesday 28 March 2023 | Psychology, Education, Chemistry | 10:00 AM to 01:00 PM (3 Hrs.) |
Wednesday 29 March 2023 | Military Science, Computer Science | 10:00 AM to 01:00 PM (3 Hrs.) |
Friday 31 March 2023 | Economics | 10:00 AM to 01:00 PM (3 Hrs.) |
Saturday 01 April 2023 | Biology, Indian Music (Vocal), Indian Music (Mailodic Instrument), Indian Music (Purssion Instrument), Agricultural Engineering Paper IV (Only for Agriculture Part I) Agricultural Animal Husbandry and Veterinary Science Paper IX (Only for Agriculture Part II) | 10:00 AM to 01:00 PM (3 Hrs.) |
Monday 03 April 2023 | English | 10:00 AM to 01:00 PM (3 Hrs.) |
Wednesday 05 April 2023 | History Agricultural Mathematics and Preliminary Statistics Paper V (Only for Agriculture Part I) Agricultural Chemistry Paper X (Only for Agricultural Part II) | 10:00 AM to 01:00 PM (3 Hrs.) |
Thursday 06 April 2023 | Home Science, Business Study | 10:00 AM to 01:00 PM (3 Hrs.) |
For More Information:- Click Here
Paper Analysis
1. There are in all 30 questions in this question paper.
2. Question no. 1 to 8 carry 1 marks each.
3. Question no. 9 to 18 carry 2 marks each.
4. Question no. 19 to 27 carry 3 marks each.
5. Question no. 28 to 30 carry 5 marks each.
And
There is no overall choice, However, internal choices have been provided in two questions of two marks each, three questions of three marks and all questions of 5 marks each. You have to attempt only one of the choices in such questions.
Comment
1. The difficulty level of the Biology paper 2020: Easy.
2. The pattern of the Biology paper was similar to the latest Biology Sample Paper 2020.
3. All the questions in the paper were asked from the latest syllabus and based on NCERT textbooks
4. The average range of expected marks was 60+ (out of 70)
1. There are total 30 questions in this question paper.
2. Question numbers 1 to 8 carry 1 mark each.
3. Question numbers 9 to 18 carry 2 marks each.
4. Question numbers 19 to 27 carry 3 marks each.
5. Question numbers 28 to 30 carry 5 marks each.
6. Question numbers 1 to 4 are multiple choice questions. In each of these questions, 4 options are given for the answer.
7. There is no overall choice, however, internal choice has been provided in two questions carrying two questions each, three questions of three marks each and all questions of five marks each.
8. You have to attempt only one option out of such questions.
9. Make neat labeled pictures as required.
UBSE announces Class 10 & 12 results 2025. Check pass percentages, toppers, and download your marksheet at ubse.uk.gov.in or uaresults.nic.in...
Posted On: 19 Apr, 2025 | |
Read More |
![]() |
![]() |
![]() |
© 2025 Notopedia All rights reserved.
This content has been book marked