In this article we will discuss about the principle of Hardy and Weinberg which requires five assumptions for explaining the equilibrium state of gene and genotype frequency. It was the year 1908, when an English mathematician — G. H. Hardy — and a German physician, W. Weinberg independently discovered the principle concerned with the frequency of alleles in a population, [...]
In this article we will discuss about:- 1. Meaning of Crossing Over 2. Frequency of Crossing Over 3. Factors 4. Molecular Mechanism. Meaning of Crossing Over: Crossing over may be defined as an interchange of corresponding chromosomal parts between members of a homologous chromosome resulting in a recombination of genes. One, two or more fragments may be interchanged during crossing [...]
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 [...]