Feminized cannabis seeds are bred to contain no male chromosomes, thus ensuring that every plant grown from them will flower as a female and be able to produce the crop of resinous buds sought by most growers.
It should be noted that seeds in this category are technically not female seeds, as the biological definition rests on them having a full complement of genetics. Some seedbanks declare that they stock ‘100% female’ seeds, but we consider this to be both scientifically inaccurate, and misleading, since they are not truly female. It is also for this reason they are seldom recommended as a good source for a mother plant.
The process by which mothers have their life-cycle prolonged, and the constant low-grade stress caused by removing cuttings, is best withstood by regular females which are more resilient when kept under these conditions.