The following points highlight the top two types of membrane models. The types are: 1. Lamellar Models 2. Micellar or Sub-Unit Models. Membrane Models: Type # 1. Lamellar Models: (I) Lipid Bilayer Hypothesis: Overton (1895) suggested that the cell membranes contain lipids. This conclusion was based on the fact that fat solvents dissolved the membrane easily and fat soluble substances [...]
In this article we will discuss about the replication of eukaryotic chromosome. Taylor in 1958 used radioactive thymidine (3H-thymidine) to label Viciafaba root tip chromosomes. He showed that the chromosomes replicated in a semiconservative manner, and proposed that each chromatid was made up of a single DNA molecule. Thus each sister chromatid is composed of one of the two progeny [...]
After his origin, man began to think about the things around him - the earth, the sky, the mountains, the rivers, the animals, the plants and about himself. Whatever "knowledge" he could gather, he transferred it to his progeny/off-spring, and thus there was an accumulation of "knowledge" about various things. Since long, man has been thinking about "life" and still [...]