Gene Flow

Gene flow is transfer of genes from one population to another. Factors affecting gene flow: 1. Mobility: gene flow is lower in species having low mobility or dispersal. 2. Distance: When there is long distances between populations then it results in low gene flow. 3. Population size: Small population size results in low gene flow. […]

Lipid Bilayer

Lipids in cells have three main functions: energy storage, signal transduction and forming the matrix of biological membranes. Lipid membrane have asymmetric distribution of lipids between two leaflets. Cell membrane composed of polar lipids that self assemble to form bilayer. Thus, cell membrane forms asymmetric structure which means two sides of membrane are functionally and […]

Difference Between Prokaryotic and Eukaryotic cell

Difference Between Prokaryotic and Eukaryotic cell: 1) It is believed that prokaryotic cells are the most primitive cells. Eukaryotes have been evolved from the prokaryotes. 2) Prokaryotic cells are unicellular organisms. Eukaryotes may be either unicellular or multicellular organisms. Eukaryotes are of four types: animals, plants, fungi, and protists. Protists (such as protozoa, some algae) […]

Sickle Cell Anemia

Sickle cell anemia is a disease that contains abnormal hemoglobin which means sickle hemoglobin. It affects red blood cells (RBC) as it causes the cells in a sickle shape. Red blood cells are also called as erythrocytes that carry oxygen from lungs to rest of the body. Hemoglobin is the protein made by red blood […]