The mRNAs found in prokaryotes differ from that of eukaryotes in the following ways: (i) The prokaryotic mRNAs are broken down by the ribonuclease into ribonucleotide, hence these are very short lived e.g. 2 minutes in E.coli. The short lived nature is due to changes in environmental conditions. In contrast the eukaryotic mRNAs have longer life i.e. they are metabolically [...]
In this article we will discuss about the characteristics of fungi. The fungi are cosmopolitan in distribution, some are aquatic, others are terrestrial and still others are air borne. Many are parasitic on plants, animals and human beings. The plant body typically consists of branched and filamentous hyphal form, a net like structures called as mycelium. The hyphae are aseptate [...]
There are many types of RNAs, but three types of it are described here: 1. Ribosomal RNA (rRNA) 2. Messenger RNA (mRNA) 3. Transfer RNA (tRNA). Type # 1. The Ribosomal RNA (rRNA): The non-genetic RNAs are synthesized on the DNA template and are present in the nucleolus and cytoplasm. Therefore, the base sequences of rRNA and part of DNA [...]