Human blood can be classified into different blood group systems, e.g. ABO blood group, MN blood group and Rh blood group. All of these blood groups in man are under genetic control, each series of blood groups being under the control of genes at a single locus or of genes that are closely linked and behave in heredity as though [...]
Two types of mutagens are considered here which are mostly affected the humans producing different mutations resulting in a number of abnormalities: 1. Radiation Exposure 2. Chemical Mutagenesis. Type # 1. Radiation Exposure: High energy radiation or ionising radiation produces a genetic alteration or mutation at a very low dose also. It has been shown experimentally that a low dose [...]
Following are the important points which should be considered by the every medical practitioner. 1. For Taking a Family History: (i) If a person is seeking medical advice about a specific problem, ask specifically whether relatives have a similar problem. (ii) When asking about brothers and sisters, inquire whether there was ever a sibling who has died, some people will [...]