Phase contrast microscopy: Definition, principle, parts, uses A microscope is an optical instrument made of a combination of lenses and used for the magnification of objects. With the advent of …
Gluconeogenesis Pathway Some tissues, such as the brain and erythrocytes, depend on a constant supply of glucose. If the amount of carbohydrate taken up in food is not sufficient, the …
Chromosome Banding Pattern HISTORY In 1912, Winiwater was a successful attempt to count the number of human chromosomes. He was proposed that human chromosomes are 48 in women and 47 …
DNA repair mechanisms Definition DNA repair is a set of processes that a cell uses to detect and repair damage to the DNA molecules that encode its genome. DNA repair …
Ame’s Test, Replica plate technique and Fluctuation test Fluctuation test This test was devised by Luria and Delbruck (1943) for investigating the response of bacterial populations to changes in the …
Genetic Code: Definition, General Properties, and Characteristics Definition The relationship between the sequence of nitrogen bases in DNA, RNA, and the sequence of amino acids in the polypeptide chain is …
Integrated Pest Management Integrated Pest Control is defined as a pest management system that in the context of the associated environment and the population dynamics of the pest species, utilizes …
Bacterial Cell Wall: Types, Composition and Function Cell Wall (Gram-positive, Gram-negative) The cell wall is the outermost covering of a cell, present adjacent to the cell membrane, which is also …
Structure of Endospore Spores are unicellular structures. They are highly resistant, dormant metabolically inactive resting structures formed in response to adverse environmental conditions such as lack of nutrients, environmental stress …
Plasmid: Joshua Lederberg, an American molecular researcher, coined the term plasmid in 1952 to describe “any extrachromosomal hereditary material.” A plasmid is a small DNA molecule that can replicate independently …