This article throws light upon the two main types of isomerism in molecules. The types are: 1. Structural Isomerism 2. Stereo Isomerism. Type # 1. Structural Isomerism: When the isomers differ only in the arrangement of atoms or groups within the molecule, without any reference to space, these are known as structural isomers and the phenomenon as structural isomerism. Thus, [...]
In this article we will discuss about:- 1. Classification of Peptides 2. Nomenclature of Peptides 3. Preparation and Purification 4. Study. Classification of Peptides: As already mentioned oligopeptides and polypeptides are distinguished depending on whether the peptide is formed by the union of less than 4 or at least 4 amino acid. Natural peptides consist of different amino acids; but [...]
In this article we will discuss about the processing of pre-snoRNA into mature RNA. Small nucleolar RNAs are families of small RNAs involved in RNA metabolite and gene expression in eukaryotes. Their major function is in processing and modification of ribosomal RNA (rRNA). In plants, the 5.8S 18S and 28S rRNA of the cytoplasm ribosomes are produced by processing a [...]