Tag Archives | Genetic Engineering

Biology Notes on Quantitative Variations | Genetics

The below mentioned article provides notes on quantitative variation. The classical experiments in Mendelian inheritance demonstrated transmission of obviously well-marked, distinct pairs of contrasting characters (tall vs. dwarf; yellow vs. green cotyledons, etc.). Moreover, the two alternative expressions of a phenotype were controlled by a single gene which strictly obeyed the rules of dominance to produce visible qualitative differences between [...]

By |2016-12-12T07:24:43+00:00December 12, 2016|Genetic Engineering|Comments Off on Biology Notes on Quantitative Variations | Genetics
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Inheritance of Kernel Colour in Wheat | Genetics

In this article we will discuss about the inheritance of kernel colour in wheat. Nilsson-Ehle performed many crosses between varieties of wheat having red seeds and those having white seeds. In all crosses except one the F2 generation gave a ratio of 3 red to 1 white. In the one exceptional cross he used a very old red variety from [...]

By |2016-12-12T07:24:43+00:00December 12, 2016|Genetic Engineering|Comments Off on Inheritance of Kernel Colour in Wheat | Genetics
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The Chromosome Theory of Inheritance | Genetics

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 [...]

By |2016-12-12T07:24:42+00:00December 12, 2016|Chromosomes|Comments Off on The Chromosome Theory of Inheritance | Genetics
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