- Removal of certain parts from a mass, those with infectious diseases.
- Separation of contrasting characters in the offspring of heterozygotes.
- Separation of the paired state of genes, which occurs at the reduction division of meiosis; only one member of each somatic gene pair is normally included in each sperm or oocyte; an individual heterozygous for a gene pair, Aa, will form gametes half containing gene A and half containing gene a.
- Progressive restriction of potencies in the zygote to the following embryo.
[L. segrego, pp. -atus, to set apart from the flock, separate]
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