Topics
Reproduction
Biotechnology - Principles and Processes
Human Health and Diseases
- Introduction of Human Health and Diseases
- Common Diseases in Human Beings
- Immunity
- Types of Immunity
- Vaccination and Immunization
- Allergies (Hypersensitivity)
- Autoimmunity
- Human Immune System
- Sexually Transmitted Diseases (STD)
- Cancer
- Introduction of Drugs and Alcohol Abuse
- Drugs and Alcohol Abuse
- Adolescence - Drug and Alcohol Abuse
- Addiction and Dependence
- Effects of Drug and Alcohol
- Prevention and Control of Drugs and Alcohol Abuse
- Infectious and Non Infectious Disease
- Maintaining Good Health, Yoga, Excercise
- Human Health and Diseases (Questions)
Principles of Inheritance and Variation
- Introduction of Principles of Inheritance and Variation
- Mendelism
- Terminology Related to Mendelism
- Mendel’s experiments on pea plant
- Inheritance of One Gene (Monohybrid Cross)
- Monohybrid Cross
- Punnett Square
- Test Cross
- Mendelian Inheritance - Mendel’s Laws of Heredity
- The Law of Dominance
- The Law of Segregation (Law of Purity of Gametes)
- The Law of Independent Assortment
- Intragenic Interactions - Incomplete Dominance
- Intragenic Interactions - Codominance
- Inheritance of Two Genes (Dihybrid Cross)
- Extensions of Mendelian Genetics (Deviation from Mendelism)
- Intragenic Interactions - Incomplete Dominance
- Intragenic Interactions - Dominance
- Intragenic Interactions - Codominance
- Multiple Alleles
- Intragenic Interactions - Pleiotropy
- Polygenic Inheritance
- Chromosomal Theory of Inheritance
- Historical Development of Chromosome Theory
- Comparison Between Gene and Chromosome Behaviour
- Chromosomal Theory of Inheritance: Law of Segregation
- Chromosomal Theory of Inheritance: Law of Independent Assortment
- Linkage and Recombination
- Sex Determination
- Sex Determination in Some Insects
- Sex Determination in Human
- Sex Determination in Birds
- Sex Determination in Honey Bees
- Concept of Mutation
- Pedigree Analysis
- Genetic Disorders
- Mendelian Genetics
- Chromosomal Abnormalities
- Heredity and Variation
- Linkage and Crossing Over
- Principles of Inheritance and Variation Question
Organisms and Populations
- Introduction of Organisms and Populations
- Ecology (Organism, Population, Community and Biome)
- Introduction of Organisms and Environment
- Major Abiotic Factors
- Responses to Abiotic Factors
- Adaptations and Its Types
- Population Attributes
- Population Growth
- Life History Variation
- Population Interactions
- Population and Ecological Adaptations
- Organisms and Populations (Questions)
Reproduction in Organisms
- Life Span of Organisms
- Maximum Life Span of Organisms
- Reproduction in Organisms
- Types of Reproduction
- Asexual Reproduction
- Sexual Reproduction
- Asexual Reproduction in Plant
- Asexual Reproduction in Animal
- Budding
- Vegetative Reproduction
- Natural Vegetative Reproduction
- Artificial Vegetative Reproduction
- Artificial Vegetative Reproduction - Conventional Method
- Artificial Vegetative Reproduction - Modern Method
- Fission
- Budding
- Sporulation (Sporogenesis)
- Fragmentation
- Different Phases in Sexual Reproduction
- Events in Sexual Reproduction in Organisms
- Pre-fertilisation Events in Organisms
- Fertilisation in Organisms
- Post-fertilisation Events in Organisms
Strategies for Enhancement in Food Production
Biotechnology and Its Application
Molecular Basis of Inheritance
- Introduction of Molecular Basis of Inheritance
- Deoxyribonucleic Acid (DNA) and Its Structure
- Structure of Polynucleotide Chain
- Packaging of DNA Helix
- Search for Genetic Material
- Introduction of Search for Genetic Material
- The Genetic Material is a DNA
- Properties of Genetic Material (DNA Versus RNA)
- The RNA World
- DNA Replication
- The Experimental Proof
- The Machinery and the Enzymes
- Protein synthesis - Transcription
- Introduction of Transcription
- Transcription Unit
- Transcription Unit and the Gene
- Types of RNA and the Process of Transcription
- Genetic Code
- Introduction of Genetic Code
- Mutations and Genetic Code
- tRNA – the Adapter Molecule
- Translation
- Regulation of Gene Expression
- The Lac Operon
- Human Genome Project
- DNA Fingerprinting Technique
- Structure of DNA and RNA
- Structure of Nucleotide
- Rice Genome Project
- Molecular Basis of Inheritance (Questions)
Sexual Reproduction in Flowering Plants
- Flower - a Fascinating Organ of Angiosperms
- Parts of Flower
- Accessory Organs
- Essential Parts of Flower: Androecium
- Essential Parts of Flower: Gynoecium
- Sexual Reproduction in Flowering Plants
- Pre-fertilisation in Flowering Plant: Structures and Events
- Development of Anther
- Transverse Section of Mature Anther (Microsporangium)
- Microsporogenesis
- Microspores and Pollen Grains
- Development of Male Gametophyte
- Advantages and Disadvantages of Pollen Grains
- Structure of Ovule (Megasporangium)
- Types of Ovules
- Megasporogenesis
- Development of Female Gametophyte or Embryo Sac
- Pollination
- Outbreeding Devices
- Artificial Hybridization
- Kinds of Pollination
- Self Pollination (Autogamy)
- Cross Pollination
- Agents of Pollination
- Abiotic Agents
- Biotic Agents
- Fertilization in Plant
- Double Fertilization and Triple Fusion in Plant
- Post Fertilisation in Plant: Structures and Events
- Development of Endosperm
- Development of Embryo
- Development of Seed
- Development of Fruit
- Apomixis
- Polyembryony
Ecosystem
Genetics and Evolution
Evolution
- Origin and Evolution of Universe and Earth
- Theories of Origin of Life
- Evolution of Life Forms - a Theory
- Evidences for Biological Evolution
- Adaptive Radiation
- Theories of Biological Evolution
- Mechanism of Organic Evolution
- Hardy Weinberg’s Principle
- Brief Account of Evolution
- Origin and Evolution of Man
- Darwin’s Theory of Natural Selection
- Micro and Macro Evolution
- Speciation
- Evolution Stages
- Modern Synthetic Theory of Evolution
- Gene Flow and Genetic Drift
- Evolution
Biodiversity and Its Conservation
Microbes in Human Welfare
Human Reproduction
Biology and Human Welfare
Biotechnology and Its Applications
Environmental Issues
- Environmental Issues
- Prevention of Air Pollution
- Controlling Vehicular Air Pollution: a Case Study of Delhi
- Introduction of Water Pollution and Its Control
- Effects of Domestic Sewage and Industrial Effluents on Water
- A Case Study of Integrated Waste Water Treatment
- Solid Wastes
- Agrochemicals and Their Effects
- Radioactive Wastes
- Greenhouse Effect and Climate Change
- Ozone Depletion in the Stratosphere
- Degradation by Improper Resource Utilisation and Maintenance
- Deforestation and Its Causes
- Radioactive Waste Management and E-waste
- Solid Waste Management
- Noise Pollution
- Environmental Issues
Reproductive Health
Ecology and Environment
notes
Reproductive health - Problems and Strategies:
- India was amongst the first countries in the world to initiate action plans and programmes at a national level to attain total reproductive health as a social goal. Family planning measures were initiated in 1951 in India. The goal was to attain total reproductive health. These measures were periodically evaluated.
- Reproductive and Child Health Care (RCH) Programs are being operated with the aim of creating awareness among people about various reproduction related aspects and providing facilities and support for building a reproductively healthy society.
Strategies to build a reproductively healthy society:
- Governmental and non-governmental agencies should use media-both print and audio-visual, to create awareness programs.
- Responsible adults, parents, teachers, close relatives, and friends should provide correct information and be willing to open dialogues with young adults and children to sensitize them about reproductive health.
- Introduction of sex education in schools should also be encouraged to provide the right information to the young so as to discourage children from believing in myths and having misconceptions about sex-related aspects.
- Proper information about reproductive organs, adolescence and related changes, safe and hygienic sexual practices, sexually transmitted diseases (STD), AIDS, etc., would help people, especially those in the adolescent age group to lead a reproductively healthy life.
- Educating people, especially fertile couples and those in the marriageable age group, about available birth control options, care of pregnant mothers, post-natal care of the mother and child, the importance of breastfeeding, equal opportunities for the male and the female child, etc., would address the importance of bringing up socially conscious healthy families of the desired size.
- Awareness of problems due to uncontrolled population growth, social evils like sex abuse and sex-related crimes, etc., need to be created to enable people to think and take up necessary steps to prevent them and thereby build up a socially responsible and healthy society.
- Successful implementation of various action plans to attain reproductive health requires strong infrastructural facilities, professional expertise and material support. These are essential to provide medical assistance and care to people in reproduction-related problems like pregnancy, delivery, STDs, abortions, contraception, menstrual problems, infertility, etc.
- Implementation of better techniques and new strategies from time to time are also required to provide more efficient care and assistance to people.
- Statutory ban on amniocentesis for sex-determination to legally check the increasing menace of female foeticides, massive child immunization, etc., are some programmes that merit mention in this connection. In amniocentesis, some of the amniotic fluid of the developing foetus is taken to analyze the fetal cells and dissolved substances. This procedure is used to test for the presence of certain genetic disorders such as, down syndrome, haemoplilia, sickle-cell anemia, etc., to determine the survivability of the foetus.
- Research on various reproduction-related areas is encouraged and supported by governmental and non-governmental agencies to find out new methods and/or to improve upon the existing ones. ‘Saheli’– a new oral contraceptive for females - was developed by scientists at Central Drug Research Institute (CDRI) in Lucknow, India.
‘Saheli’– a new oral contraceptive pills
Better awareness about sex-related matters, increased number of medically assisted deliveries, and better post-natal care leading to decreased maternal and infant mortality rates, increased number of couples with small families, better detection and cure of STDs, and overall increased medical facilities for all sex-related problems, etc. all indicate improved reproductive health of the society.
notes
Amniocentesis (or Prenatal Diagnostic Tests):
Amniocentesis is a foetal sex and disorder determination test based on the chromosomal pattern of the embryo’s cells in the amniotic fluid surrounding the developing embryo.
Amniocentesis |
Procedure: Amniotic fluid contains cells from the skin of the foetus and others sources. These cells can be used to determine the sex of the infant, identify some abnormalities in the number of chromosomes and to detect certain biochemicals and enzymatic abnormalities. If it is established that the child is likely to suffer from a serious incurable congenital defect, the mother should get the foetus aborted.
Misuse: It is being used to kill the normal female foetus; hence it is legally banned to avoid female foeticide.
Chorionic villus sampling (CVS): CVS is a prenatal test that involves taking a sample of the placental tissue to test for chromosomal abnormalities.