somatic cell mutation vs germ cell mutation

According to this theory genetic mutations occur and accumulate with increasing age, causing cells to deteriorate and malfuncti..

The variations at the level of the gene which form the basis of the differences between related organism as well as the diversity among organisms is called gene mutation. Gene mutation is defined as a sudden discrete change in the genetic material of gene which is heritable. ..

They are mutation involving change in number or structure of chromosomes. Change in number of chromosomes induced by mutagens can lead to aberrant gametes, which when fuse with normal gamete lead to aneuploid zygotes. Changes in chromosomal structure by mutation are brought abo..

In this method embryos are generated artificially by somatic cells carrying 2n chromosomes as against embryos normally produced in nature by gametes carrying chromosomes. These embryos are called embryoids . They are grown in large number in a small volume of nutrient medium. ..

>Mitosis occurs in all the living cells of the body of an organism. Hence it is called somatic cell division. Mitosis is described as equational division since the chromosome number of daughter cells will be same as that of the parent cell. Mitosis ..

Fibrocytes are stellate or star shaped cells, which produce the matrix and white and yellow fibres. Macrophages are irregular, amoeboid cells which can ingest bacteria and other disease producing germs by phagocytosis. Mast cells are spherical or oval..

Protoplast is a cell without cell wall. In plants, the cells are invariably surrounded by thick cell wall made of cellulose and pectin. During the process of tissue culture and using it for crop improvement, cell wall acts as a barrier to induce ..

Protoplast is a cell without cell wall. In plants, the cells are invariably surrounded by thick cell wall made of cellulose and pectin. During the process of tissue culture and using it for crop improvement, cell wall acts as a barrier to indu..

This was proposed by Weismann who did not agree with Lamarck's theory of inheritance of acquired characters. To prove his point, he cut off the tails of many successive generations of mice. This resulted in forced disuse of the tail. According to the theory of use and disuse, the tails should have..

They are somatic and non-inheritable. They are caused by the influence of the environment upon the somatic cells..