Turmeric is a spice that contains Curcumin, a chemical compound that has been found to have anti cancer properties. For centuries, turmeric has been used as an antibiotic in India to provide relief in wounds and cuts.
Lesson Summary. In summary, directional selection is a type of natural selection in which individuals with a trait at one end of a phenotypic spectrum are most fit. Disruptive selection is a type of natural selection in which individuals at either end of a phenotypic spectrum are most fit.Stabilizing selection is a type of selection in which individuals in the middle of a phenotypic spectrum are most fit.esson Summary. In summary, directional selection is a type of natural selection in which individuals with a trait at one end of a phenotypic spectrum are most fit. Disruptive selection is a type of natural selection in which individuals at either end of a phenotypic spectrum are most fit.
3. Modes of selection: Natural selection acts in 3 ways on the distribution of phenotypes (Fig. 23.11) 1  Stabilizing selection: an intermediate phenotype is favored â reduced phenotypic variation. 2  Directional selection: one end of a phenotypic distribution is favored â shifts the mean phenotype.