Quantitative Analysis of RNA Content in the Brain of Five Different Vertebrate Species – Pisces, Amphibian, Reptile, Avian and Mammalian Families

The increase in brain size during development of an organism is due to an increase in the number and the size of the cells and therefore DNA and RNA content. RNA amount is considered as a reflection of basic functional activity.The prime goal of this study is to compare the accumulated data about various species by defining the differences and the similarities of RNA content in the cerebrum and cerebellum. Differences in the whole body weight, cerebrum and cerebellum weight between in relation to total brain weight of all the five vertebrate species have been compared. Total RNA in cerebrum as a ratio of five vertebrate species. In the case of murrel and gecko the values of male and female significantly different. In the case of toads, avian and rat was not significant. The ratio of total RNA was lowest in murrel and rat shows that highest ratio. Though a defined heirachal patterns in RNA were found in this study, further detailed RNA studies are required in future.