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NCERT Solutions for Class 12 Biology

NCERT Solutions for Class 12 Biology helps students to Prepare for CBSE Board Examination 2019. Class 12 biology NCERT Solutions are prepared by the expert Teachers at LearnInsta.com

NCERT class 12 Biology may look easy at first but gets tougher as the time passes. This class 12 biology NCERT solutions will help you all provide a smooth sail and can clear your doubts whenever you want. The answers in NCERT solutions for class 12 biology are provided in a logical manner and step by step procedure.

NCERT Solutions for Class 12 Biology

There are various biology class 12 chapters like reproduction in the organism, microbes in human welfare, and more that will be understood in this article. NCERT solutions for class 12 biology has been designed in such a way that biology – class xii students can take maximum benefit out of it. We have also given an overview of each and every biology chapters in the order below.

  • Class 12 Biology Chapter 1 Reproduction in Organisms
  • Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants
  • Class 12 Biology Chapter 3 Human Reproduction
  • Class 12 Biology Chapter 4 Reproductive Health
  • Class 12 Biology Chapter 5 Principles of Inheritance and Variation
  • Class 12 Biology Chapter 6 Molecular Basis of Inheritance
  • Class 12 Biology Chapter 7 Evolution
  • Class 12 Biology Chapter 8 Human Health and Diseases
  • Class 12 Biology Chapter 9 Strategies for Enhancement in Food Production
  • Class 12 Biology Chapter 10 Microbes in Human Welfare
  • Class 12 Biology Chapter 11 Biotechnology: Principles and Processes
  • Class 12 Biology Chapter 12 Biotechnology and Its Applications
  • Class 12 Biology Chapter 13 Organisms and Populations
  • Class 12 Biology Chapter 14 Ecosystem
  • Class 12 Biology Chapter 15 Biodiversity and Conservation
  • Class 12 Biology Chapter 16 Environmental Issues

NCERT Solutions for Class 12 Biology is designed by India’s best teachers. It includes all the important topics with a detailed explanation that aims to help students understand concepts better. NCERT books play a crucial role in the preparation for all exams conducted by the CBSE, including NEET.

Class 12 Biology Chapter 1 Reproduction in organisms

This is a very important and informative chapter in class 12 biology textbook. This biology chapter talks about various unicellular and multicellular organisms. Through this 12 class biology chapter, students will get an opportunity to study the sexual reproduction in multicellular organisms via fertilization, post-fertilization, and pre-fertilization. Along with this plus two biology student will also learn about asexual reproduction through fragmentation, binary fission, budding, and spore formation.

Class 12 Biology Chapter 2 Sexual reproduction in flowers

Sexual reproduction in flowers has studied many times by students in brief. But this biology 12 NCERT chapter will help you study the process, structure of sexual reproduction in flowers in depth. Besides this, 12 biology students will also learn about the structure, the events, fruits, the formation of seeds, apomixis, endosperm, the need for fertilization, how flowers are prepared for fertilization, pollen grain, stamen, and many more topics in 12 bio NCERT.

Class 12 Biology Chapter 3 Human reproduction

Reproduction has been discussed many times in previous NCERT bio classes as well. But in class 12 NCERT biology there is an in-depth study about the reproduction in humans. Through this biology 12th class chapter, students will be able to read about the female as well as the male reproductive system, implantation process, three types of fertilization, embryo development, pregnancy, primary as well as secondary sex organs, various key stages in pregnancy, variation in the process of lactation, etc.

Class 12 Biology Chapter 4 Reproductive health

This 12th biology NCERT chapter is of greater importance as it answers the day to day life situations like the importance of reproductive health, why everyone should maintain the healthy reproductive system, the process that is used widely and adopted to keep everything safe, etc. This chapter of class 12 biology students can increase their awareness by reading on sexually transmitted diseases, the time during which pregnancy is terminated, causes of infertility, birth control and preventing the unlimited population, taking care of a child during pre and post pregnancy, etc.

Class 12 Biology Chapter 5 Principles of inheritance and variation

This class 12 biology chapters will help students gain in-depth knowledge related to the principles of variation and inheritance. Everyone knows that the term hereditary is a process. This procedure usually deals with transferring genetic information and traits from parents to offspring’s. Also, this process continues from generation to generation. Furthermore, this topic will help 12 bio NCERT students gain more knowledge of one/two genes, genetic disorder, and mutation.

Class 12 Biology Chapter 6 Molecular basis of inheritance

This chapter which is usually considered as very important in biology class 12 talks about transcription, genetic material, the enzymes, genome project, types of RNA, genetic code and mutation, replication, translation, RNA world, packaging of DNA helix, main features and application of human genome, transcription unit along with gene, etc.

Class 12 Biology Chapter 7 Evolution

How life is formed on Earth is studied under evolution. This chapter will give students knowledge about the evolution of all the existing fauna and flora on Earth. This biology chapter further talks about various processes of the mechanism of evolution, biological evolution, adaptive radiation, the theory of evolution of various life forms, the origin of life, etc. There are also flowcharts, diagrams, exercises, and figures that give students a clear picture of the topic in NCERT book 12th biology.

Class 12 Biology Chapter 8 Human health and disease

This chapter will significantly provide information to students on health and diseases. It will provide detail learning in types of diseases, their treatments and preventions, general inner immunity, common diseases in human, passive and active immunity, alcohol and drug abuse, effects of alcohol and drugs, etc. This whole 12 bio NCERT chapter is ought to be equipped with better explanation through flowcharts, diagrams, and pictures.

Class 12 Biology Chapter 9 Strategies that enhance food production

This chapter 9 of class 9 is detailed on information containing plants breeding for diseases resistance, animal husbandry, single cell protein, tissue culture, breeding plants in order to develop resistance, agriculture, beekeeping, fisheries, etc. For a better understanding of the concepts and topics, there are flowcharts, figures, diagrams, etc given in the chapter in NCERT biology book.

Class 12 Biology Chapter 10 Microbes in human welfare

The tiny organisms on Earth are known as microbes. Specifically, prions, fungi, protozoa, bacteria, plant virus, etc are known as microbes. A brief introduction about the microbes is given in the previous NCERT biology 12th classes. Furthermore, students will also learn about the bad and good microbes, microbes available in household and industrial products, biocontrol agents, biofertilization, enzymes and it’s typed, etc. These topics along with the other topics are explained through diagrams, flowcharts, and illustration, for an easy and clear understanding of students.

Class 12 Biology Chapter 11 Biotechnology processes and principles

This chapter is quite informative and interesting and covers the details as much as possible. The topics like the process of DNA technology, principles of biotechnology, recombination of DNA technology, isolating genetic DNA material, tools for recombining DNA technology, how foreign gene product is obtained, restriction enzymes, cloning vector, insertion of recombinant DNA, etc. are covered in this chapter. Furthermore, for easy and better understanding of students, there are also flowcharts and diagrams given in the chapter in 12th biology book.

Class 12 Biology Chapter 12 Biotechnology and its applications

This technology is related to the biotechnology and its applications for human welfare. This chapter gives knowledge about those technologies and techniques that are formed by living organisms like animals, plants, and microbes. Furthermore, this NCERT 12 bio chapter includes the applications of biotechnology in medicines, animals, agriculture, metabolic machinery, transgenic animals, etc. There is also discussion on how biotechnology has made humans with the help of products made of animals, plants, microbes, and metabolic machinery.

Class 12 Biology Chapter 13 Organisms and population

This chapter is very important from exam point of view and to gain better marks. The topics included in this chapter are big abiotic factors that affects the development of organisms along with it’s environment, niche, population attributes, mortality, growth, emigration, adaptation, immigration, growth model of logistic and exponential attributes, phenomenon of population interaction like commensalism, parasitism, competition, amensalism, mutualism, etc. There are charts, figures, and illustrations given in the chapter for a better understanding of students.

Class 12 Biology Chapter 14 Ecosystems

This chapter is all about the animals, plants, and microbes that are living on Earth and interacting with each other and that is also surrounded by air, soil, and water. This is an important topic from marks as well as a learning point of view. There are key structures of the ecosystem, ecological pyramid, succession, the functioning of the system, nutrient cycling, decomposition, productivity, etc. in this chapter.

Class 12 Biology Chapter 15 Biodiversity and conservation

This is a very detailed chapter of class 12 in biology. There are various studies related to living organisms like animals, plants, and microbes that exist the ecosystem of Earth in this chapter. It also provides learning related to the importance of biodiversity, structures, types, conservation, gradual development, degradation, the significance of species and other interesting topics in this biology chapters of class 12

Class 12 Biology Chapter 16 Environmental issue

The threat environment is a very big threat and thus it needs to be studied. The issues related to environment like pollutions, mixing of contaminated water, air, land along with harmful gases released by industries is the main topic in this chapter. This NCERT solutions class 12 biology chapter primarily focuses on topics of deforestation, harmful effects of pollution, global warming, water, and air pollution, greenhouse effect, ozone depletion, case study against the integrated treatments along with the remedy of plastic waste, etc.

NCERT solutions for class 12 biology gives every student the details and in-depth analysis of each and every NCERT biology chapter. This article can also be shared with other people who are facing difficulty in this subject.

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