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Life Science

Introduction to Bioscience

by Dr. J. P. Sharma
26.91 Reward Points
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The subject matter is comprehensive up to date and concise. Every care has been taken to make the language simple and the presentation of the text systematic. Well informative and self explanatory diagrams have also been included insufficient number. While great emphasis has been laid on basic fundamentals, no effort has been spared to incorporate recent information in sufficient details. Each chapter has been appended with sufficient number of review exercises that include multiple choice type questions, objective type questions, and descriptive questions.
Additional Info
  • Publisher: Laxmi Publications
  • Language: English
  • ISBN : 978-93-83828-22-7
Total Price: 0
  • Chapter 1

    Introduction to Bioscience Price 2.99  |  2.99 Rewards Points

    The living world comprises of diverse type of organisms. Millions types of living organisms exist on the Earth. The Science which deals with the study of living things is called biology (Gk. bio-life, logos-study or discourse). The definition of biology appears to be quite simple, but this science is very complex and informative. It covers all aspects of study of living beings like origin, occurrence, external form, organisation, life history and inheritance. All these disciples constitute several aspects or branches of biology. Being broad based and multidisciplinary, the term biology is often replaced by the term ‘life sciences’ or biosciences or biological sciences.
  • Chapter 2

    Cell Structure and Function Price 2.99  |  2.99 Rewards Points

    Organisms are made up of one or more cells. Many organisms consist of just one cell. They are called unicellular organisms e.g., Amoeba, Euglena, Chlamydomanas, etc. There are other organisms which are composed of many cells. These are called multicellular organisms. Higher animals and plants are the examples of multicellular organisms. The body of a 60 kg, adult human being has about 100 trillion (100 × 1012) cells. A drop of blood contains several million cells. The large sized organisms do not have large sized cells, instead they possess higher number of cells.
  • Chapter 3

    Metabolic Engineering Cellular Respiration Price 2.99  |  2.99 Rewards Points

    All living organisms requires a continuous supply of energy for carrying out various functions such as uptake of materials, growth, development and movement. Energy is also required by some organisms for bioluminescence (light emission) and to keep their body warm. The energy needed by the cells is obtained through cellular respiration. Even the green plants that trap solar energy by photosynthesis and store it as organic compound depend on respiration for their continuous energy supply.
  • Chapter 4

    DNA and RNA The Molecular Basis of Heredity Price 2.99  |  2.99 Rewards Points

    The living matter is made up of different types of biomolecules. Therefore, genetic material should also be of biochemical nature. For a biochemical to be genetic material, it must have a high degree of variety and a mechanism of its replication. Nucleic acids possess both variety and mechanism of replication.
  • Chapter 5

    Protein Synthesis Central Dogma Price 2.99  |  2.99 Rewards Points

    Besides replicating precisely, DNA is also able to transfer the genetic information stored in it for the synthesis of polypeptides or proteins. The proteins are the most important components of the cell. They are the building materials of the protoplasm, and perform a variety of functions in the cell.
  • Chapter 6

    Cell Division Price 2.99  |  2.99 Rewards Points

    Living organisms do not live forever. There comes a time, when an organism dies. Death can be caused by a number of factors such as diseases, accidents, predation, starvation or pollution. If organisms do not die due to such factors, they eventually die because of old age. Death of every individual organism is a certainty (i.e., no individual immortal), still life continues. There must be some process in living organisms that ensures this continuity. The process that ensures continuity of life is referred as reproduction. It is necessary for the continuation of life and to compensate for the loss of life due to death. The statement ‘nothing lives forever yet continues’, explain the role of reproduction in nature.
  • Chapter 7

    Introduction to Genetic Engineering Price 2.99  |  2.99 Rewards Points

    Genetic engineering also referred as ‘recombinant DNA technology’ or ‘gene splicing’, is a kind of biotechnology involving manipulation of DNA. If deals with the isolation of useful genes from a variety of sources and the formation of new combinations of DNA (called recombinant DNA or rDNA) for repair and improvement of a genotype. Genetic engineering alters the chemistry of genetic material (DNA and RNA) to introduce these into host organisms to bring about a change in the phenotype of the host organism. Thus, genetic engineering may be defined ‘as a technique for artificial and deliberately modifying DNA (gene) to suit human needs’ Paul Berg (1972), was able to introduce a gene of SV-40 into a bacterium with the help of lambda phage (λ-phase). Paul Berg is often considered ‘Father of Genetic Engineering’. He was awarded Nobel Prize in 1980.
  • Chapter 8

    Gene Sequencing and Human Genome Project Price 2.99  |  2.99 Rewards Points

    The identity of an organism or an individual is due to its genetic make up. The genetic make up of the organism/individual lies in its DNA sequences. The differences between two individuals are due to differences in the nucleotide sequences of their DNAs, at least at some places. These assumptions led to the quest of finding out the complete DNA sequence of human genome. Advances in genetic engineering techniques made it possible to isolate and clone any piece of DNA and determine nucleotide sequences of these fragments
  • Chapter 9

    Human Reproduction Price 2.99  |  2.99 Rewards Points

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About the Author

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Dr. J. P. Sharma

Dr. J. P. Sharma view complete profile

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