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 the discrete unit of transmission [...]
The following points highlight the top two models of chromosomes. The models are: 1. Multiple Strand Models 2. Single Strand Models. Model # 1. Multiple Strand Models: a) Simple Multi-Stranded Model: According to this model the chromosome consists of 64 double helices of DNA arranged in a parallel number, and twisted together like the strands of a rope. The difficulty [...]
In this article we will discuss about:- 1. Background of Chromosomes 2. Location of Chromosomes 3. Number 4. Shape 5. Size 6. Chemistry 7. Chemical Components 8. Physiology. Historical Background of Chromosomes: i) The term chromosome (Gr. chromo, color; soma, body), when used by Waldeyer in 1888, represented the darkly stained individualized bodies located in the nucleus. ii) Walter S. [...]