NCERT Solutions For Class 12 Biology

Download NCERT Solutions For Class 12 Biology Free PDF

NCERT publishes textbooks prescribed by CBSE and the question given in these textbooks are very much important from the exam point of view, it is suggested to solve the NCERT questions provided at the end of every chapter. The solutions are updated for the upcoming examinations. The NCERT Solutions For Class 12 Biology Free PDF are provided here. These solutions are prepared by subject matter experts.

The NCERT class 12 biology solutions are given in an easy way so that students can learn and grab the concepts easily.
NCERT textbooks are known very important role in JEE and NEET, etc. Download NCERT Solutions For Class 12 Biology Free PDF from the Chapter-Wise links given below:

NCERT Solutions For Class 12 Biology Chapters

Chapter 1 Reproduction In Organisms
Chapter 2 Sexual Reproduction In Flowering Plants
Chapter 3 Human Reproduction
Chapter 4 Reproductive Health
Chapter 5 Principles Of Inheritance And Variation
Chapter 6 Molecular Basis Of Inheritance
Chapter 7 Evolution
Chapter 8 Human Health And Diseases
Chapter 9 Strategies For Enhancement In Food Production
Chapter 10 Microbes In Human Welfare
Chapter 11 Biotechnology Principles And Processes
Chapter 12 Biotechnology And Its Application
Chapter 13 Organisms Populations
Chapter 14 Ecosystem
Chapter 15 Biodiversity And Its Conservation
Chapter 16 Environmental Issues

Class 12th Biology Chapter 1 Reproduction in Organisms
This chapter through the Class 12 Biology solutions, learn about the significance of reproduction and modes of reproduction.continuation of species modes of reproduction – asexual and sexual reproduction,embryogenesis, zygote, zoospore, gametogenesis, meiosis,juvenile phase,fertilization, and post-fertilization events etc.

Class 12th Biology Chapter 2 Sexual Reproduction in Flowering Plants
To help of the Class 12 Biology chapter solutions, learn about concepts such as megasporogenesis, microsporogenesis, self-pollination in flowers, etc. Revise topics such as bagging technique, triple fusion, perisperm, epicotyl, integument, testa, hypocotyl, emasculation, apomixis, apomixis and polyembryony and more.

Class 12th Biology Chapter 3 Human Reproduction
In this chapter, human reproductive system how to work in learn how to describe the structure of a seminiferous tubule.such as ovary, testis,spermiogenesis, spermatogenesis, oogenesis,gametogenesis and more. Practise diagrams such as Graafian follicle, female reproductive system, sperm,etc more topics of human reproduction.

Class 12th Biology Chapter 4 Reproductive Health
To explain the importance of reproductive health in a society. With the help of solutions by experts, understand how to answer questions such as why use of contraceptives is justified and how infertile couples can try to have children.The health of the child during pre-pregnancy, pregnancy and post-pregnancy periods.Population explosion and birth Control.sexually transmitted diseases.

Class 12th Biology Chapter 5 Principles of Inheritance and Variation
This chapter covers topics such as Mendelian Inheritance, chromosome theory of inheritance, inheritance of blood groups, Punnett square, genetics, etc. Sex determination – in humans, birds and honey bee; linkage and crossing over; sex linked inheritance – haemophilia, colour blindness; chromosomal disorders in humans;Turner’s and Klinefelter’s syndromes.Also, revise terms such as homozygous, heterozygous, monohybrid, dihybrid, test cross, pedigree analysis.

Class 12th Biology Chapter 6 Molecular Basis of Inheritance
To be covered this chapter,genetic materials such as DNA.Understand how to Hershey and Chase proved that DNA is a genetic material. DNA packaging; DNA replication; Central dogma; transcription, genetic code, translation; gene expression and regulation – lac operon; genome and human and rice genome projects; DNA fingerprinting.

Class 12th Biology Chapter 7 Evolution
This chapter engrosses you in the amazing story of biological evolution and the contribution of famous biologists such as Darwin. Study the various components of human evolution. Darwin’s contribution, modern synthetic theory of evolution; mechanism of evolution,Diagrams, illustrations, flowcharts.

Class 12th Biology Chapter 8 Human Health and Disease
NCERT Solutions Chapter 8 Biology for Class 12, To study about human diseases and the basic concepts of immunology. Find out about public health measures that are taken to prevent infectious diseases. Revise the theory about transmission of diseases such as Malaria, Amoebiasis, Pneumonia, Ascariasis, HIV,AIDS,drug and alcohol abuse etc. Study concepts such as metastasis, cancerous cell, active immunity.

Class 12th Biology Chapter 9 Strategies for Enhancement in Food Production
In this chapter, you will find solutions related to concepts such as animal husbandry, biofortification, plant breeding, tissue culture, embryo transfer technology and tissue culture techniques,single cell protein, Biofortification, Apiculture and Animal husbandry. Revise the various methods involved in animal breeding.

Class 12th Biology Chapter 10 Microbes in Human Welfare
This chapter will assist you in learning the importance of microbes for food processing,sewage treatment, energy generation and production of antibiotics.Disease-causing microbes are called as pathogens. Influenza, tuberculosis, polio,cholera.Understand how microbes help in controlling diseases caused by harmful bacteria.

Class 12th Biology Chapter 11 Biotechnology Principles and Processes
To help students the concepts around genetic engineering like bioreactors, Chitinase, PCR, downstream processing, Plasmid DNA, Exonuclease, Chromosomal DNA, origin of application, etc. Get answers about recombinant proteins used in medical practice and their applications.

Class 12th Biology Chapter 12 Biotechnology and its Applications
To understand the applications of biotechnology in agriculture and health-related areas. Revise topics such as Cry proteins, gene therapy, cloning, golden rice, etc. Find out whether our blood has nucleases and proteases,metabolic machinery. Also, understand how rDNA technology can be used to remove oil from seeds.

Class 12th Biology Chapter 13 Organisms and Populations
To understand organisms and their environment. Learn to define terms such as phenotypic adaptation, camouflage, population, mutualism, parasitism, hibernation, endotherms,water, light, soil,responses to abiotic factors,population attributes – growth, birth rate and death rate, age distribution and more topics.

Class 12th Biology Chapter 14 Ecosystem
Study about biological ecosystems through concepts such as decomposition, food web, grazing food chain, detritus, secondary productivity,energy flow, pyramids of number,biomass, energy,nutrient cycles,ecological services,carbon fixation, pollination, seed dispersal,oxygen etc. to Understand the components of an ecosystem.

Class 12th Biology Chapter 15 Biodiversity and Conservation
To study the concept of biodiversity and what leads to the loss of biodiversity. importance of biodiversity, loss of biodiversity,biodiversity conservation,hotspots, endangered organisms,extinction, Red Data Book, biosphere reserves,national parks.species diversity,latitudinal gradients,species area relationship.Also, understand the concept of biotic components of an ecosystem.

Class 12th Biology Chapter 16 Environmental Issues
To be designed to make you aware of various environmental issues such as air pollution, water pollution, ozone layer depletion,global warming, deforestation, etc. causes and preventive measures for tackling environmental issues.To Study the terms such as eutrophication, radioactive wastes, e-wastes, municipal solid wastes.

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Importance of Solving NCERT Class 12
NCERT Solutions Class 12 for other subjects Physics, Chemistry, Maths, etc are also available to download. Download sample papers and Previous Years Question papers CBSE board papers as per the latest updated CBSE Syllabus for 2022 for more practice of all subjects. Download all chapters in PDF format available in NCERT solutions sections of each subject.

These solutions for class 12 biology are prepared under the guidelines of NCERT to help students in their exam preparations and to perform best in the board exam. Therefore, those students who want to ace their CBSE class 12 board exam should start with their preparation by referring to these NCERT solutions right away.

The NCERT solutions for class 12 Biology are framed as per the present and updated syllabus pattern as per CBSE guidelines. Along with the solutions, students can also find few chapter-wise test series, previous year question papers, and much more to prepare effectively for their board exams.

Frequently Asked Questions on NCERT Solutions Class 12 Biology

1.What is Darwinian?

The focus was physiology and internal morphology or anatomy.Darwinian ideas of evolution by natural selection changed the perception completely.Classical descriptive and clueless biology found a theoretical framework in the evolutionary theory of Darwin.

2.What is the causes of population explosion?

1.The Decline in the Death Rate
2.Agricultural Advancements
3.Better Medical Facilities
4.Technological Advancement in Fertility Treatment

3.What are the types of microbes?

The four major groups of microorganisms like.
2.archaea & fungi
4.protozoa & viruses

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