Biology is one of the major topics that forms the stepping stone to pursue a career in medicine. It is a no-brainer that the subject is vital for medical aspirants. Some of the important tips to consider to excel in Class 12 Biology include-
The second chapter in NCERT Solutions for Class 12 Reproduction in Organisms is a high-yield topic with respect to examination point of view. The chapter discusses about various types or modes of reproduction in organisms. Reproduction being a biological process in which a mature organism gives rise to its young ones. Each organism leaves its progeny by means of sexual or asexual reproductive methods. Between the phase of life and death, an organisms go through a biological process to give rise to offspring, which grow and mature into new organisms. Some of the key topics to be studied under the chapter include:
- Pay proper attention during lectures.
- Make a habit of taking notes, which help in preparing for the examinations later on.
- Use flashcards or flowcharts to remember definitions, processes included in the syllabus.
- Practice to draw neat diagrams that help in better understanding of the concepts and score better in exams.
- Solve sample papers and practice papers to identify your strengths and weaknesses in the subject.
- Proper revision and multiple readings can be helpful in understanding the topics better.
The second chapter in NCERT Solutions for Class 12 Reproduction in Organisms is a high-yield topic with respect to examination point of view. The chapter discusses about various types or modes of reproduction in organisms. Reproduction being a biological process in which a mature organism gives rise to its young ones. Each organism leaves its progeny by means of sexual or asexual reproductive methods. Between the phase of life and death, an organisms go through a biological process to give rise to offspring, which grow and mature into new organisms. Some of the key topics to be studied under the chapter include:
- Asexual Reproduction: This is a process where a single individual or parent can give rise to a young one similar to itself. Here, often offspring are not only identical, but are the exact copies of parent organisms. It is commonly found in single-celled organisms and in organisms with simple cellular organizations. The asexual reproductive methods might also include processes like budding, binary fission and others. Asexual reproduction is also made possible by some specialized asexual reproductive structures as in fungi and few algae which include zoospores, conidia, gemmules, etc.
- Sexual Reproduction: The CBSE Class 12 Biology Chapter 2 also throws light on the process of sexual reproduction. This basically involves the formation of male and female gametes that fuse to form a structure called zygote, which then grows and develops into new organisms. These reproductive structures maybe produced in the same organism or different organisms. The morphology and physiology differs in organisms involved in sexual reproduction, but the pattern remains constant across plants, fungi or animals. The reproductive structures might fuse inside or outside of the parent organisms. Some times, the structures are carried away by wind or water , where they land on the appropriate reproductive structures to bring about fertilization. It is mandatory for an organism to attain growth and maturity, before it can reproduce sexually, which is often referred to as juvenile phase. The end of juvenile phase, also called as vegetative phase in plants marks the start of reproductive phase.
- Vegetative reproduction is commonly found in plants. Reproduction is achieved in plants with structures like runner, rhizome, tuber, offset, bulb, and sucker. These are also termed as vegetative propagules.
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