In this article we will discuss about:- 1. Dosage Compensation and Sex-Chromatin Bodies 2. Details about Dosage Compensation or Lyon’s Hypothesis 3. Objectives behind the Proposition of Lyon’s Hypothesis and 4. Evidences in Support of Lyon’s Hypothesis. Dosage Compensation and Sex-Chromatin Bodies: In man it has been found that Y-chromosomes are genetically inert in comparison […]
Dosage Compensation/Lyon’s Hypothesis | Genetics
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Classification of Human Chromosomes | Genetics
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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: […]
Klinefelter’s Syndrome: History, Origin and Symptoms | Genetics
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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 […]
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