Notes and Study material for Exams
DNA: STRUCTURE DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the … Read more
Stem Cell Research Stem cells are undifferentiated, or “blank,” cells. This means they’re capable of developing into cells that serve numerous functions in different parts of the body. Most cells in the body are differentiated cells. These cells can only serve a specific purpose in a particular organ. For example, red blood cells … Read more
The living world Objects having characteristics of cellular organization, Growth, Reproduction, ability to sense Environment and give response are living organisms. There are some important features of living organisms: It should grow, which means its structure changes as time goes by in an advantageous manner. It should show adaptation to the environment. It should maintain … Read more
Biodiversity and conservation Biodiversity, or biological diversity, is the variety of all life forms.Sum total of all the variety of living organisms on earth constitute biodiversity. There are three Levels of Biodiversity: Genetic diversity—the variety of genetic information contained in individual Plants, animals and micro-organisms Species diversity—the variety of species ecosystem diversity—the … Read more
Principal of inheritance and variation Inheritance or Heredity is the genetic information passing for traits from parents to their offspring, either through asexual Reproduction or sexual reproduction. This is the process by which an offspring cell or organism acquires or becomes predisposed to the characteristics of its parent cell or organism. Through heredity, variations exhibited … Read more
The Tapestry of Life: Exploring Species Diversity and its Importance The Earth teems with life, a vibrant tapestry woven from millions of unique species, each playing a crucial role in the intricate web of ecosystems. This remarkable diversity, known as species diversity, is the foundation of our planet’s health and resilience. It encompasses the variety … Read more
Evolution, simply put, is descent with modification. This definition encompasses small-scale evolution (changes in gene frequency in a Population from one generation to the next) and large-scale evolution (the descent of different species from a common ancestor over many generations). Evolution helps us to understand the history of life. Evolution is not simply a matter … Read more
The Tapestry of Life: A Deep Dive into Biodiversity Conservation Biodiversity, the intricate web of life on Earth, encompasses the vast array of species, their genetic diversity, and the ecosystems they inhabit. It is the foundation upon which our planet’s health and our own well-being depend. However, this vital tapestry is facing unprecedented threats, leading … Read more
Molecular breeding and marker assisted selection Molecular breeding Molecular Breeding or Marker assisted breeding (MAB) is the process of using the results of DNA tests to assist in the selection of individuals to become the parents in the next generation of a genetic improvement program. The choice among various methods of MAB depends … Read more
Concept of Organic Farming, seed certification Organic farming is an alternative agricultural system which originated early in the 20th century in reaction to rapidly changing Farming practices. Organic farming continues to be developed by various organic agriculture organizations today. It relies on Fertilizers of organic origin such as Compost Manure, green manure, and Bone Meal … Read more