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 [...]
In this article we will discuss about:- 1. Meaning of Deficiency in Chromosome 2. Origin of Deficiency in Chromosomes 3. Deletion in Human 4. Chromosome Pairing 5. Uses. Meaning of Deficiency in Chromosome: The term deficiency was coined by Bridges in 1917. It may be defined as a structural change resulting in the loss of a terminal acentric chromosome, chromatid [...]
The following points highlight the five specific types of translocation in genetics. The types are: 1. Pseudo-Iso-Chromosomes 2. Interdependent Rings 3. Cyclic or Progressive Translocation 4. Duplication-Deficiency Interchange Heterozygotes 5. Interchanges between Normal and Supernumerary Chromosomes. Translocation: Type # 1. Pseudo-Iso-Chromosomes: This term was coined by Caldecott and Smith in 1952: it may be defined as a chromosome the two [...]