The following points highlight the two main types of heteroploidy. The types are: 1. Euploidy 2. Aneuploidy. Heteroploidy: Type # 1. Euploidy: The change in chromosome number which involves entire set is called euploidy. In other words, euploidy refers to numerical change in entire genome. The somatic chromosome number of an euploid individual is exact multiple of basic number of [...]
In this article we will discuss about Chromosomes:- 1. Introduction to Chromosomes 2. Chromosome Number 3. Size 4. Morphology 5. Chromosomes in Nucleoprotein 6. Chromosomes Containing Single DNA Molecule 7. Types 8. Models 9. Chemical Structure 10. Biological Importance. Contents: Introduction to Chromosomes Chromosome Number Chromosome Size Morphology of Chromosome Chromosomes in Nucleoprotein Chromosomes Containing Single DNA Molecule Types of [...]
Kinds of Chromosomes: Lampbrush, Polytene and Supernumerary! [I] Lampbrush chromosomes: These are the largest known chromosomes found in the yolk rich oocytic nuclei of certain vertebrates such as fishes, amphibians, reptiles and birds. They can be seen with naked eye and are characterized by fine lateral loops, arising from the chromomeres, during first prophase (diplotene) of meiosis. Image Courtesy [...]
