In this article we will discuss about the mechanism of eukaryotic gene expression, particularly in humans. 1. In multicellular organism, each cell expresses a subset of its genes. 2. A cell expresses different genes depending on its growth state or environment. 3. Sometimes gene transcripts are spliced differently in different cells. 4. Each gene carries […]
Mechanism of Eukaryotic Gene Expression | Genetics
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Physical Basis of Heredity with Theories | Genetics
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In this article we will discuss about the physical basis of heredity with theories investigated by a great number of workers, some of whose results are as follows: Encasement Theory: One of the older, but now abandoned, ideas was set forth in the preformation or encasement theory, which supposed that the germs of all future […]
Morphologic Characteristics of Chromosomes | Genetics
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The morphologic characteristics of chromosomes are best studied during metaphase and anaphase of cell division. The chromosome was supposed to be covered by a membranous Pellicle. Electron microscope studies later showed that there is no definite membranous pellicle surrounding the chromosomes. A matrix of some sort, possibly protein, lipid, may be present. Other structures present […]
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