In this article we will discuss about:- 1. Meaning of Meiosis 2. Occurrence of Meiosis 3. Genetics 4. The Spindle Apparatus 5. Forces Required for Chromosome Movement 6. Regulation of the Cell Cycle. Meaning of Meiosis: The division which takes place in cells of the germ line is called meiosis (Fig. 6.2). It results in four products of a parent [...]
In this article we will discuss about the place of meiosis in oomycetes. It is still under dispute. Stevens as early as 1899 suggested gametangial meiosis in Albugo. His interpretation was disputed by later workers. Since then it has been widely held that the Oomycetes, as a whole, are haploid and meiosis occurs in the oospore. Sansome (1963) working with [...]
In this article we will discuss about:- 1. Meaning of Meiosis 2. Divisions of Meiosis 3. Significance 4. Need 5. Types. Meaning of Meiosis: Meiosis (Gk. meioum or meio— to lessen) is a double division which occurs in a diploid cell (or nucleus) and gives rise to four haploid cells (or nuclei), each having half the number of chromosomes as [...]