In this essay we will discuss about the factors influencing allele frequency. Essay on Allele Frequency Essay Contents: Essay on Selection Essay on Mutation Essay on Meiotic Drive and Migration Pressure Essay on Random Genetic Drift Essay on Founder Principle Essay # 1. Essay on Selection: I. Evolution: Evolution has been described by Lewontin (1967) as a process that converts [...]
In this essay we will discuss about the Hardy-Weinberg law of population genetics. The formula (p + q)2 = p2 + 2pq + q2 is expressing the genotypic expectations of progeny in terms of gametic or allelic frequencies of the parental gene pool and is originally formulated by a British mathematician Hardy and a German physician Weinberg (1908) independently. Both [...]
In this essay we will discuss about the examples that illustrates the cases of extra-nuclear inheritance in eukaryotes. Essay # 1. Maternal Inheritance: In certain cases, it has been observed that certain characteristic phenotypic traits of F1, F2 or F3 progeny are not the expression of their own genes, but rather those of the maternal parents. Such phenotypic expressions of [...]