In this article we will discuss about:- 1. Diagnostic Features of Cat's Cry Syndrome 2. Modification of Cat's Cry Syndrome 3. Findings. Diagnostic Features of Cat's Cry Syndrome: Some of the following features are not absolute in occurrence, and in that case values in the parentheses are the frequency of occurrence: i) The name of this syndrome refers to the [...]
In this article we will discuss about the chromosome theory of inheritance. In order to understand the role played by chromosomes as carriers of hereditary material, we must turn the clock backward to some landmarks in the history of genetics. The earliest records date back to the work of the 18th Century plant hybridisers. One of them Kolreuter had some [...]
The following point highlight the five main types of structural variation in chromosomes. The types are: 1. Deletion or Deficiency 2. Duplications 3. Translocations 4. Inversions 5. B-Chromosomes. Type # 1. Deletion or Deficiency: A deficiency means deletion of a small portion of a chromosome resulting in loss of one or more genes. A deficiency originates from breakage occurring at [...]