Tag Archives | Genetics

Modern Developmental Genetic Discoveries | Evolution | Biology

The eyes of insects and the eyes of vertebrates were, until the early 1990s, considered to be a standard example of "analogous" structures. They perform the same function but have utterly different internal structures, suggesting that they evolved independently from a common ancestor that lacked eyes. Then the laboratory of Walter Gehring in Switzerland began to research genes that are [...]

By |2017-12-11T05:39:46+00:00December 11, 2017|Discoveries|Comments Off on Modern Developmental Genetic Discoveries | Evolution | Biology

Models of Gene-Pool Structure | Population Genetics

Regarding the genetic structure of the population, the following two hypotheses have been proposed:- 1. Classical Hypothesis 2. Balance Hypothesis. Model # 1. Classical Hypothesis: It was developed by T.H. Morgan (1932) and supported by H.J. Muller and Kaplan (1966). The classical hypothesis proposes that the gene pool of a population consists at each gene locus of a wild-type allele [...]

By |2017-11-09T18:48:02+00:00November 9, 2017|Population Genetics|Comments Off on Models of Gene-Pool Structure | Population Genetics

Chance Mating in Mendelian Population | Genetics

Just as the gene frequency is controlled in the genetic laboratory, so is the mating pattern, generation after generation. But outside the laboratory, chance mating is a chance or random affair. Every member of Mendelian population, thus, depends on chance or random matings. In other words, every male gamete in the gene pool has an equal opportunity of uniting with [...]

By |2017-11-09T18:48:02+00:00November 9, 2017|Population Genetics|Comments Off on Chance Mating in Mendelian Population | Genetics
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