The below mentioned article provides a study note on Ribozyme and RNA World Hypothesis. According to this hypothesis primordial cells lacking protein synthesis use RNA both as the repository of genetic information and as enzymes that catalyse metabolism. Enzymatic catalysis which was earlier thought to be the exclusive domain of proteins, but is now established that RNA molecules can cut, [...]
Lecture notes on chromosome. After reading these notes you will learn about: 1. Introduction to Chromosome 2. Meaning of Chromosome 3. Number and Size 4. Structure and Morphology 5. Molecular Organization 6. Mechanism of Chromosome Condensation 7. Special Types 8. Karyotype Concept 9. Heterochromatin. Contents: Notes on Introduction to Chromosome Notes on the Meaning of Chromosome Notes on the Number [...]
The below mentioned article provides a short note on Microtubule and Spindle. During the process of cell division the cytoplasmic network of microtubules disappears and the microtubules are reassembled in the form of spindle in the dividing cell (in both mitotic and meiotic cell division). Though the controlling pattern of this disappearance and recognized is not very clear, but it [...]