Microbes in Production of Biogas

Introduction Microbes in Production of Biogas Biogas is a mixture of gases (containing predominantly methane) produced by microbial activity and which may be used as fuel. Major component of biogas is methane (50-70%) which is highly inflammable, other gases are carbon dioxide (30-40%) and mixture of other gases H2, H2 S etc. (10%). Calorific value … Read more

Human Genome Project

Genetic make-up of an organism or an individual lies in the DNA sequences. The differences in two individuals will naturally be reflected in the differences of their nucleotide sequences. Human Genome Project They can known only if the entire human genome is mapped. With the establishment of genetic-engineering techniques where it was possible to isolate … Read more

Post fertilization events

The post fertilization events includes:-1. Endosperm development This is a product if triple fusion and develops from cell of embryo sac. It is generally a triploid tissue.  The cells of this tissue are filled with reserve food materials and are used for the nutrition of the developing embryo. It is absent in families such as … Read more

Disorder of Immune System

Disorder of Immune System Allergy or Hypersensitivity It is the hypersensitiveness of a person to some foreign substances called allergens coming in contact with or entering the body. It is the exaggerated response of the immune system to certain antigens present in the environment. The substances to which such an immune response is produced are … Read more

microbes in industrial products

Microbes in industrial products Production of beverages and antibiotics on an industrial scale, is done by growing microbes in very large vessels called fermentors. Fermentors (a) Fermentors Beverages           (i) Yeast species used in alcoholic fermentation are:-           Saccharomyces cerevisiae commonly called Brewer’s yeast.           Ellipsoidens- Wine … Read more

Ethical issues

Ethics includes a set of standards by which a community regulates its behaviour and decides as to which activity is legitimate and which is not. Therefore, bioethics, may be viewed as a set of standards that may be used to regulate our activities in relation to the biological world. The manipulation of living organisms by … Read more

Sericulture

Sericulture is the breeding and management of insects for the production of silk. All the four varieties of natural silk, mulberry, tassar, eri and muga, are produced in India. India ranks third among the mulberry silk producing countries of the world. mulberry silk Silks are of two main types, mulberry silk or cultivated silk and … Read more

Lactation

Introduction Lactation is a complex physiological process that entails the production and secretion of milk from the mammary glands, primarily for the nourishment of newborns. This process is not only vital for the survival and development of mammalian offspring but also a fascinating example of the intricate interplay between hormones, anatomy, and behavior. The initiation … Read more

Population Growth

Introduction Population growth has been one of the most significant phenomena shaping human history, influencing socio-economic, environmental, and political landscapes. As we journey through the 21st century, understanding the intricacies of population dynamics becomes ever more critical, especially as we face unprecedented global challenges Historical Context and Causes Historically, population growth has been driven by … Read more

Tissue Culture

Introduction As traditional breeding techniques failed to keep pace with demand and to provide sufficiently fast and efficient systems for crop improvement, therefore another technology called tissue culture got developed. (1) what does tissue culture mean? Plant tissue culture is the maintenance and growth of plant cell, tissue s and organs on a suitable culture … Read more