In this article we will discuss about:- 1. Discovery of Transformation 2. Process of Transformation 3. Competence 4. Linkage and Gene Mapping. Discovery of Transformation: The phenomenon was first discovered in 1928 from Griffiths experiment with Diplococcus pneumoniae. As this historical experiment has been instrumental for identification of DNA as a hereditary material. Briefly, when a suspension containing a mixture [...]
In this article we will discuss about the meaning and types of transduction of bacteria. Meaning of Transduction: The transfer of a small part of a bacterial genome from a donor to recipient bacterium through the agency of a bacteriophage is called transduction. It may be general or specialised. In generalized transduction almost any part of the donor's chromosome may [...]
Get the answer of: When is Prenatal Diagnosis Done ? Prenatal diagnosis by amniocentesis is useful for prevention of birth of genetically abnormal children. Families having repeated abortions and/or congenital malformations (defects from birth) are likely to be carriers of a genetic anomaly ("high risk" families). The genetic counsellor can estimate the probability or chance for a future child in [...]