NCERT Grade 12 Biology Chapter 1, Reproduction in Organisms is from Unit, Reproduction. In this chapter, students will learn about types, modes, and the process of reproduction in different organisms. Asexual Reproduction, Sexual Reproduction, Pre-fertilisation Events, Fertilisation, and Post-fertilisation Events are the main topics discussed in this chapter. Asexual reproduction in unicellular organisms through budding, fragmentation, spore formation, binary fission, etc. is discussed with the help of diagrams and examples. Similarly, vegetative propagation such as runner, rhizome, sucker, tuber, offset and the bulb is demonstrated with the help of illustrations. Artificial as well as natural modes of vegetative propagation is discussed in this chapter.
Sexual reproduction with the help of gametes; pre-fertilization events such as spermatogenesis, oogenesis and others, fertilization events that include copulation, fusion of male and female gametes and post-fertilization events such as the development of the embryo, gestation, and parturition of a variety of organisms are the topics discussed in this chapter. Illustrations of organisms, examples, diagrams, figures, flowcharts and summarizing points make this chapter interesting and easy to learn. NCERT Grade 12 Biology Chapter 1, Reproduction in Organisms is from Unit, Reproduction. This unit is a combination of 4 chapters. It holds a total weightage of 14 marks in the final examination of Grade 12.
Get 100 percent accurate NCERT Solutions for Class 12 Biology Chapter 1 (Reproduction in Organism) solved by expert Biology teachers. We provide solutions for questions given in Class 12 Biology text-book as per CBSE Board guidelines from the latest NCERT book for Class 12 Biology. The topics and sub-topics in Chapter 1 Reproduction in Organism are given below.
Ex 1.1 - ASEXUAL REPRODUCTION
Ex 1.2 - SEXUAL REPRODUCTION
Ex 1.2.1 - Pre-fertilisation Events
Ex 1.2.3 - Post-fertilisation Events
We cover all exercises in the chapter given below:-
Chapter 1 Exercises - 18 Questions with Solutions.
Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Reproduction in Organism. Download the free PDF of Chapter 1 Reproduction in Organism and take the print out to keep it handy for your exam preparation.