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 [...]
The following points highlight the top four methods of chromosome studies. The methods are: 1. Fixation 2. Stains 3. Pre-Treatment 4. Method of Making Slides Grease-Free. Chromosome Studies: Method # 1. Fixation: Fixation may be defined as the selective preservation of morphological organization and chemical composition of tissues for microscopic observation. The main effects of fixative are — rendering the [...]
The following points highlight the top twenty-one techniques of plant chromosomes analysis. Some of the techniques are: 1. Study of Meiosis in Plant Material following Aceto-Carmine Smear Technique 2. Study of Mitosis in Plant Material following Aceto-Orcein Squash Technique 3. Study of Karyotype in Plant Material following Aceto-Orcein Squash Technique and a few others. Techniques of Plant Chromosomes Analysis: Study [...]