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
description
- Maximum life span of organisms
- Approximate life spans of some organisms
notes
Maximum life span of organisms:
- Life Span: The length of time a species may exist in the best of conditions is referred to as its life span. The dog, for example, can live in captivity for 20 years, whereas the tortoise can live for over 150 years.
- Life Expectancy: Life expectancy is the estimated number of years that a person born within a certain time period might fairly be expected to live. In other words, it is the average number of years a person born in a certain country would live if death rates at each age remained constant in the future. Life expectancy is a hypothetical number calculated for humans based on mortality statistics retrieved from insurance businesses, that were born in the same period and are likely to live, and is affected by the varying death rate over time.
- Average life span: The average life span, which is a statistical theory derived from the examination of mortality data for each species population, provides a more indicative evaluation.
- Maximum life span: The greatest life span is merely a theoretical figure; the precise amount cannot be determined based on current knowledge. It is frequently presented as a ballpark estimate based on the longest-lived entity of that species known to date.
notes
Approximate life spans of some organisms:
The table below shows the life span of different species -
| Entity | Life span (Maximum) |
| Elephant | 60-75 years |
| Rose | 5-7 years |
| Dog | 25 years |
| Butterfly | 1-2 weeks |
| Crow | 15 years |
| Banana Trees | 20-25 years |
| Cow | 20-25 years |
| Parrot | 140 years |
| Crocodile | 60 years |
| Horse | 25-30 years |
| Fruit Fly | 25-30 days |
| Rice Plant | 3-4 months |
| Tortoise | 100-150 years |
| Banyan Tree | 200–500 years |
| House rat | 3.5 years |
| Lion | 30 years |
| Tiger | 25 years |
| Chimpanzee | 45-60 years |
| Giant Salamander | 50-55 years |
| Humans | 60-100 years |
| Hummingbird | 8 years |
| Squirrel | 16 years |
| Guinea pig | 8 years |
| Monkey | 26 years |
| Rabbit | 13 years |
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