The below mentioned article provides an overview on Chromosomes in the Nucleoplasm:- 1. Subject-Matter of Chromosomes 2. Historical Note of Chromosomes 3. Number 4. Morphology 5. Size 6. The Structure of Eukaryotic Chromosomes 7. Principal Landmarks 8. Chromosome with Diffuse kinetochore and Polycentric Chromosome. Contents: Subject-Matter of Chromosomes Historical Note of Chromosomes Number of Chromosomes Morphology of Chromosomes Size of [...]
In this article we will discuss about:- 1. Meaning of Chromosomes 2. Chromosome Number 3. General Morphology. Meaning of Chromosomes: In 1875, Strasburger discovered thread-like structures which appeared during cell division. Later, these structures were termed as chromosomes (chroma = colour; soma = body) by Waldeyer in 1888 since they showed affinity for basic dyes and could be stained deeply, [...]
In this article we will discuss about the changes in chromatin structure during transcription. Displacement of nucleosomes: During transcription, some changes in the chromatin structure occur in the region of transcription. RNA polymerase is comparatively larger in size than the nucleosomes. The molecular weight of RNA polymerase is about 5,00,000 Daltons, while that of nucleosome is about 2,60,000 Daltons. Lewin [...]