In this article we will discuss about the structure of chromosomes with the help of suitable diagram. Chromosome is present as individual bodies in the interphase as well as in the mitosis. The predominant component in the chromosome is DNA molecule. The genes are located in chromosome of the nucleus and can be called as […]
Structure of Chromosomes (With Diagram) | Cell Nucleus | Biology
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Nucleosome Model of Chromatin Assembly | Cell Nucleus | Biology
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The nucleosome hypothesis proposed by Roger Kornberg in 1974 was a paradigm shift for understanding eukaryotic gene expression. The assembly of DNA into chromatin involves a range of events, beginning with the formation of the basic unit, the nucleosome, and ultimately giving rise to a complex organization of specific domains within the nucleus. The first […]
5 Special Types of Chromosomes | Botany
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The following points highlights the five special types of chromosomes. The types are: 1. Polytene Chromosome or Giant Chromosome 2. B-Chromosome or Supernumerary Chromosome 3. Chimaera 4. SAT-Chromosome. Type # 1. Polytene Chromosome or Giant Chromosome: Object: To prepare acetocarmine squash of giant chromosome or polytene chromosome from salivary glands of Drosophila. Requirements: Drosophila melanogaster […]
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