In this article we will discuss about the transposable elements in the eukaryotic organisms. Transposons have been discovered in eukaryotic organisms also, e.g., controlling elements in maize, Tam1 elements in Antirrhinum majus, Ty elements in Yeast and FB elements in Drosophila. These elements can be divided into two main classes. 1. This class includes the […]
Transposable Elements in the Eukaryotic Organisms | Chromosome
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Representing Chromosome Set of Species
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The following points highlight the two main ways of representing chromosome set of species. The ways are: 1. Karyogram 2. Idiogram or Idiotype. Representing Chromosome: Way # 1. Karyogram: Photomicrographs of the chromosomes of a single representative somatic metaphase cell are clipped out and arranged in homologous pairs according to their size. If the chromosomes […]
Permanently Specialized Chromosomes
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The following points highlight the four main types of permanently specialized chromosomes. The types are: 1. Nucleolar Chromosomes 2. Sex Chromosomes 3. B Chromosomes 4. Chromosomes with Diffuse or Multiple Centromeric Regions. Permanently Specialized Chromosomes: Type # 1. Nucleolar Chromosomes: The chromosome forming the nucleolus (plural = nucleoli) is called the nucleolar chromosome. Normally one […]
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