In this article we will discuss about the subject-matter and structure of Ribosomes present in the cells of plant and animals. Subject-Matter of Ribosomes: In the cytoplasm of the cell there are found particles composed of RNA (ribonucleic acid) and proteins. These are called ribosomes. These particles occur in all the cells that synthesize proteins and they are involved in [...]
In this article we will discuss about the chemical composition and structure of ribosomes. Chemical Composition of Ribosomes: Ribosomes are made of RNA and protein. In E. coli, they contain 34% protein and 66% RNA, while in eukaryotes, they contain 40% protein and 60% RNA. Chemical composition of large subunit is different from that of small subunit. The size and [...]
Let us make an in-depth study of the ribozyme. After reading this article you will learn about: 1. Self Splicing Process or Autosplicing 2. Role of Ribozyme in Protein Synthesis and 3. Hammerhead Ribozyme. Self Splicing Process or Autosplicing: Like protein enzymes some RNA molecules function as enzymes. Like protein enzymes some RNA sequences form complex tertiary structures and play [...]