Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
Gregor Mendel was an Austrian scientist who is known as the father of modern genetics. He is renowned for the three laws of inheritance proposed by him.
- Law of dominance
- Law of segregation
- Law of independent assortment
To conclude and propose these three theories Mendel had to perform a series of experiment breeding and cross breeding between the pea plants with different traits/ phenotype which later supported for the theory of Mendel.
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