In this article we will discuss about the classification of human chromosomes on the basis of size and position of the centromere. All the human chromosomes in normal numbers (46) can be arranged in groups based on size and positions of the centromere. The resulting classification of the chromosomes is given in the following table: Methods of Human Chromosome Classification [...]
In this article we will discuss about the control of the synthesis of haemoglobin. 1. The Control of the Rate of Synthesis of the Peptide Chains. i. Rate of synthesis of Normal peptide chains: Approximately 95% of the red cell protein is haemoglobin. The peptide chains of haemoglobins are thus synthesized at a rate much higher than that of any [...]
In this article we will discuss about:- 1. History of Klinefelter's Syndrome 2. Origin of Klinefelter's Syndrome 3. Symptoms 4. Ascertainment and Phenotype 5. Cytogenetic Findings 6. Frequency. History of Klinefelter's Syndrome: 1. In 1942, Klinefelter, Refenstein and Albright found nine men with small testes, aspermia, elevated urinary gonadotrophins and gynecomastics. These persons were later designated as Klinefelter's syndromic. 2. [...]