NCERT Solutions for Class 12 Biology complete NCERT chapterwise solutions for CBSE class 12

NCERT Solutions For Class 12 Biology

NCERT Biology Solutions For Class 12

NCERT Solutions for Class 12 Biology is a useful resource prepared by our highly experienced faculty members to develop a strong foundation of all the concepts included in class 12 biology syllabus. Concepts explained in NCERT biology solutions for class 12 prepare students for boards as well as highly competitive medical exams like NEET. All the important concepts like Reproduction in Organisms, Reproductive Health, Inheritance, Evolution, Human Health, Food Production, Microbes in Human Welfare, Biotechnology, Organisms, and Populations, Ecosystem, and biodiversity are explained precisely in NCERT solutions for class 12 Biology for the better understanding of both students and teachers. BYJU'S provide class 12 Biology NCERT solutions along with proper explanations and solved examples, prepared exclusivity by our highly qualified faculty members. NCERT Biology Solutions for Class 12 is encompassed by the comprehensive step-by-step description of all the exercises given in NCERT textbooks. You can refer chapter wise Biology class 12 NCERT solutions from the links given in the table.

NCERT Biology Solutions For Class 12

Before starting with NCERT Biology solutions for class 12 it is important to understand the NCERT syllabus of class 12 biology. Below table shows the list of chapters included in the syllabus:

CHAPTER

NAME

1

REPRODUCTION IN ORGANISMS

2

SEXUAL REPRODUCTION IN FLOWERING PLANTS

3

HUMAN REPRODUCTION

4

REPRODUCTIVE HEALTH

5

PRINCIPLES OF INHERITANCE AND VARIATION

6

MOLECULAR BASIS OF INHERITANCE

7

EVOLUTION

8

HUMAN HEALTH AND DISEASES

9

STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION

10

MICROBES IN HUMAN WELFARE

11

BIOTECHNOLOGY PRINCIPLES AND PROCESSES

12

BIOTECHNOLOGY AND ITS APPLICATION

13

ORGANISMS AND POPULATIONS

14

ECOSYSTEM

15

BIODIVERSITY AND ITS CONSERVATION

16

ENVIRONMENTAL ISSUES

Downloadable files of ebooks, notes, pdfs are available at BYJU'S for students to start their exam preparation without delay. Access to online courses is also very simple. All you have to do is register to BYJU'S and start attending classes.

The chapter one covers the chapter Reproduction in organisms which include the topics - Organisms and their life span, Types of reproduction: Sexual and asexual, modes and structures of sexual reproduction, vegetative propagules, Sexual reproduction: Pre fertilization:gametogenesis and gamete transfer, syngamy and fertilization, post fertilization. Types of fertilization: External and internal, Types of animals.

Chapter two covers Sexual reproduction in flowering plants which includes the topics - Flower, Structure of flower, Parts of flower, Functions of flower, Microsporogenesis, Megasporogenesis, Pollination and Fertilization.

Chapter three covers Human Reproduction which includes the topics - Male Reproductive System, Female Reproductive System, Gametogenesis, Menstrual cycle, Fertilization and Implantation, Pregnancy and Embryonic development, Parturition and Lactation.

Chapter four covers Reproductive Health which includes the topics - What is reproductive health?, Reproductive health: problems and strategies, Population explosion and birth control, Contraception, Different types of contraceptives, Sexual Transmitted Diseases, Infertility and causes of infertility.

Chapter five covers Principles of Inheritance and Variations which includes the topics- Mendel's law of Inheritance, Inheritance of one gene, Inheritance of two genes, Sex determination, Mutation, Genetic disorders.

Below is the example of revision test of first 5 chapters. Participate in the revision test, mock test conducted by BYJU'S and analyse your paper to know how you can improve in your finals and prepare accordingly. Once you have completed the test open your NCERT Solutions for Class 12 Biology textbook and check for the answers. Here is a sample revision practice test:

The sample paper covers chapter 1 - 5. All questions are compulsory to attempt.

Q1. Answer in one line

  1. What is the asexsual reproductive structure in Sponge?

Q2. Match the following:

Heterothallic

Monoecious

Homothallic

Dioecious

Q3. Write one difference each between Oestrus cycle and Menstrual cycle

Q4. Elaborate the following:

  1. Apomixis
  2. Scutellum

Q5. How are microspores in angiosperms developed?

Q6. Which are the hormones produced by women during pregnancy?

Q7. Write one difference between codominance and incomplete dominance.

Q8. Who rediscovered Mendel's laws?

Q9. YyRr is crossed with wrinkled pea plant. Explain the result with diagram.

Q10. Define mutagen and give one example.

Q11. Define MTP.

Q12. What is menarche?

Q13. Draw labelled diagram of seminiferous tubule.

Q14. Which part of fallopian tube is closest to the ovary?

Q15. Draw anatropous ovule and label any 6 parts.

Q16. What happens to Synergids after fertilization?

Q17. What is the major difference between autogamy, xenogamy and geitonogamy?

Q18. What are the gamete mother cells called in diploid organisms?

Q19. Explain the process of cross pollination in plants.

Q20. State true or false:

  1. Independent assortment can be seen in monohybrid cross.

For more practice tests and mock tests sign up on BYJU'S the learning app. Apart from Biology, get NCERT solutions of class 12 for other subjects like Chemistry, Physics and Mathematics as well. Students can download worksheets, assignments, NCERT Books Class 12 and other study materials for exam preparation and get better marks in the exam.

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