CBSE Board Exam 2024: 10 Unmissable Topics to Score 95% and Above in 12th Biology – Times of India


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The Class 12th Biology Board Exam for 2024 is scheduled to be conducted by the Central Board of Secondary Education on March 19. As students gear up for this important examination, they are encouraged to review the essential topics that are key to achieving a score of 95% and above.
Here are 10 unmissable topics to focus on:
Sexual Reproduction in Flowering Plants: This chapter is essential for grasping how plants reproduce.Learn about the stages in their life cycle, and how pollination and fertilization work, including the unique process called double fertilization.
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Human Reproduction: This detailed chapter discusses different topics like gametogenesis, the menstrual cycle, fertilization, development, and contraception. Make sure you fully understand the diagrams and how these processes work.
Mendel’s Laws of Inheritance: In genetics basics, learn about dominant and recessive traits, how traits separate during inheritance, and how they assort independently. Try solving problems involving single-trait and two-trait crosses to reinforce your understanding.
Molecular Basis of Inheritance: Concentrate on learning about DNA’s structure, how it copies itself, and the steps involved in making proteins through transcription and translation. Understanding diagrams and key processes is essential for getting a grasp on this topic.
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The Origin of Life and Evolution: Get a handle on Darwin’s theory of evolution, the proof that supports it, how natural selection works, and different ways evolution occurs, such as mutation, genetic drift, and gene flow.
Biotechnology and its Applications: In this chapter, we explore different practical uses such as recombinant DNA technology and tissue culture, and how they’re applied in fields like medicine, agriculture, and industry. Grasp the processes involved and their significance.
Human Health and Diseases: Learn about both infectious and non-infectious diseases, what causes them, and ways to prevent and control them. Get acquainted with common illnesses such as cancer, AIDS, and malaria.
Ecosystem: Grasp how ecosystems are organized and how they work, including how energy moves through them, the connections in food chains and webs, the shape of ecological pyramids, and the variety of life, known as biodiversity. Diagrams and understanding biotic (living) and abiotic (non-living) factors are key.
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Environmental Issues: This section talks about important problems like pollution, global warming, losing different types of plants and animals, and ways to deal with them. Pay attention to what’s happening in the environment now and how we can fix it.
Applications of Biotechnology in Agriculture and Animal Husbandry: Learn about how we use genetically modified plants, natural fertilizers, and natural pesticides, and how they’re used in breeding and improving animals.


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