Cell division is the process by which a cell, called the parent cell, divides into two cells, called daughter cells. It is a small part of a large cell cycle. In meiosis, a cell is permanently transformed and cannot divide again. Cell division is the biological basis of life. For simple unicellular organisms such as […]
The petal of a flower or the skin on the back of a human hand may seem smooth and seamless, as if they were composed of a single, indistinct substance. In reality, however, many tiny individual units called cells make up these objects and almost all other components of plants and animals. The average human […]
Animal cell- typical of a eukaryotic cell, enclosed by a plasma membrane and containing a membrane-bound nucleus and orgnelles. Unlike the eukaryotic cells of plants and fungi, animal cells do not have a cell wall. This feature was lost in the distant past by the single-celled organisms that gave rise to the kingdom of Animalia. […]
Water and other simple matters contain small organic molecules, essential in these matters. The structures of these molecules are intimately related to their functions. There is much interest in the relationship of form and function among scientists involved in biology, molecular biologists, physicists and biochemists. When these small organic molecules are joined together, giant molecules […]
An extremely versatile technique for copying DNA is the polymerase chain reaction, also called PCR. The PCR allows a singe DNA sequence to be copied a million times, or altered in predetermined ways. It can be used to introduce restriction enzyme sites or to change, mutate particular bases of DNA. It can even be used […]
The term molecular biology was first established in 1930 and coined by Warren Weaver. It embodies the study of cell at the molecular level, simply put a study of biology at the molecular level. The field overlaps with other areas of biology and chemistry, particularly genetics and biochemistry. Molecular biology chiefly concerns itself with understanding […]
