A most common and important source of genetic variability is known to be present uniformly throughout the genome is termed Single Nucleotide Polymorphisms or SNPs. Interest in SNPs lies in the fact that these polymorphisms may be responsible for the differences in disease susceptibility, drug metabolism and response to environmental factors between individuals. Even, if they are not directly responsible for the disease, they serve as genetic markers for a nearby locus that might be responsible. Continue reading What are SNPs? Why are Scientists interested in them?
It is a well-known fact that DNA acts as a genetic material in most of the organisms on this planet earth. However, it is also clear that RNA also acts as a genetic material, but only in some viruses (for example, Tobacco Mosaic Viruses, QB Bacteriophage, etc.).
Continue reading Why Nature Preferred DNA over RNA?
The discovery that genetic information is coded along the length of DNA was one of the major achievements of science in the 20th century. This polymeric molecule, DNA, is the chemical basis of heredity and is the fundamental units of genetic information.
Continue reading Who discovered that DNA is the Genetic Material?