The below mentioned article provides a short note on the Homeotic Genes. Homeotic genes constitute an intricate regulatory network, in which one gene may activate or repress other genes Homeotic genes are involved in regulation of development through a predetermined pathway in which specific genes are turned on and off at particular times. Homeotic genes act in a transcriptional cascade, [...]
The following points highlight the three main stages for mechanism of induced mutagenesis. The stages are: 1. Base Analogue Incorporation 2. Base Alteration 3. Distortion of DNA. Stage # 1. Base Analogue Incorporation: Some chemical compounds are sufficiently similar to the nitrogen bases of DNA so that they occasionally are incorporated into DNA in place of normal bases, such compounds [...]
The below mentioned article provides a short note on the Essential Properties of Gene. There are, however, certain essential properties of genes. As the genes control all characters transmitted from generation to generation, the gene must have the stability or permanency in the cell, principally in the nucleus. It implies that, it must be an essential component of all cells [...]