The eyes of insects and the eyes of vertebrates were, until the early 1990s, considered to be a standard example of "analogous" structures. They perform the same function but have utterly different internal structures, suggesting that they evolved independently from a common ancestor that lacked eyes. Then the laboratory of Walter Gehring in Switzerland began to research genes that are [...]
The following points highlight the top three techniques used to study the genetics of human traits. The techniques are: 1. Pedigree Analysis 2. Amniocentesis 3. Twins. Technique # 1. Pedigree Analysis: Since, in human beings controlled crosses cannot be made, so human geneticists have to resort to a scrutiny of established matings in the hope that informative matings have been [...]
In this article we will discuss about:- 1. Methods of Inbreeding 2. Genetic Effects of Inbreeding 3. Inbreeding Depression 4. Practical Applications. The process of mating of individuals which are more closely related than the average of the population to which they belong, is called inbreeding. For example, parthenogenesis in animals and apomixes and self-fertilization in plants are the most [...]