A collection of particular persons or items, formed into one body; as a corporation aggregate, which is one formed of a number of natural persons; the union of individual charges make an aggregate charge.
3. Pleiotropy (or pliotropy) is the phenomenon in which a single gene conditions several different phenotypical traits. Some phenotypical traits may be sensitive to the pleiotropic effects (for example, inhibition) of other genes, even when conditioned by a pair of alleles in simple dominance.A mixture of pleiotropy and gene interaction is characteristic of these cases.1  Non-Mendelian Inheritance-Image Diversity: pleiotropy.ome phenotypical traits may be sensitive to the pleiotropic effects (for example, inhibition) of other genes, even when conditioned by a pair of alleles in simple dominance. A mixture of pleiotropy and gene interaction is characteristic of these cases. 1  Non-Mendelian Inheritance-Image Diversity: pleiotropy.
Expert answer. Amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease, is a progressive, neurodegenerative disorder that causes muscle weakness. It is incurable and eventually fatal. It occurs at a very low incidence, about one to three cases per 100,000 people.