Mendel's law of segregation states that only one of the two gene copies present in an organism is distributed to each gamete (egg or sperm cell) that it makes, and that the distribution of the alleles is random. According to Mendel's law of segregation, which of the following letters is missing in the Punnett square at location X if a pea plant with the genotype Rr is crossed with a pea plant Rr R. O Rr O RR OR Or
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.
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