The below mentioned article provides biology notes on Eukaryotic Cell. A eukaryote cell is the one which has an organised nucleus and several membrane covered cell organelles. Except monera, the cells of all other kingdoms have eukaryotic organisation. Cell wall is present in cells of plants, fungi and some protists. It is absent in animal cells and some protists. Wall [...]
In this article we will discuss about:- 1. Definition of Chromosomes 2. Types of Chromosomes 3. Functions. Definition of Chromosomes: Chromosomes are rod shaped or threadlike deeply stainable condensed chromatin fibres which are hereditary vehicles as they store and transmit coded hereditary information. Chromosomes appear only during karyokinesis. They are meant for equitable distribution of genetic material. The number is [...]
In this article we will discuss about the Structure and Functions of Centrioles. Structure of Centrioles: Centrioles are minute-sub-microscopic micro tubular sub cylinders with a configuration of nine triplet fibrils and ability to form their own duplicates, astral poles and basal bodies, without having DNA and a membranous covering. They are approximately 0.3-0.5 µm in length and 0.15µm in diameter. [...]