The cell theory was given by the scientists Scheldien and Schwann that explains that all organisms are made of cell. Cells performs the structural and functional unit of life. The complex and simple organisms are made of cell. The new cells arise arise from the pre existing cells.
The cell modify its structure according to the function it perform. The cell cycle process increases the cell numbers in the organisms. The advancement in biotechnology and molecular bio is helpful to prove that DNA is the genetic material of all the living organism that are passed from the parents to the next generation.
Cell theory is originally presented by Schleiden and Schwann and initially, it has only two points and after some time the third point added but with the discoveries in the field of biotechnology there are many other points that are accepted and known as the modern cell theory.
According to the cell theory, all organisms are made up of one of the multiple cells and arise from the pre-existing cells by the cell division. A cell is a basic unit of structure and function.
Other than these three there are several other points are drive with the help of discoveries regarding discoveries which is helping to form that DNA is the hereditary material that passes all necessary information to the next generation.
Polygenic inheritance occurs when one characteristic is controlled by two or more genes. Often the genes are large in quantity but small in effect. Some examples include height, skin color, eye color and weight.
- In polygenic inheritance the "dominant" capital genes are additive, each capital gene adding one unit of color to the genotype.With more capital genes, the phenotype (appearance) gets darker.
