the act of segregating or sequestering | reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller |
a social system that provides separate facilities for minority groups | (genetics) cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants) |
(genetics) the separation of paired alleles during meiosis so that members of each pair of alleles appear in different gametes | |