Knight — 64 — Dictionary 



(M.S.) is obtained from the urine of pregnant mares, 



and (P.U.) is obtained from the urine of pregnant 



women. 

 Goneoclin. — Of heterozygotes : closely resembling one parent 



due to dominance. 

 Genes. — The four cells, or their nuclei, which are normally 



the immediate product of meiosis. 

 Gonia. — A general name for oogonia and spermatogonia. 

 Gonidangium. — An organ producing gonia. 

 Gonidia. — (sing. Gonidium). Gonia, q.v. 

 Gonoblast. — A reproductive cell in animals, 

 Gonochorism. — Sex determination in animals. 

 Gonochoristic. — Of animals, having separate sexes. 

 Gonocyte. — A cell which gives rise to gametes. 

 Gonogenesis. — The process leading to the formation of 



gametes. 

 Gonomery. — The state of having the maternal and paternal 



genomes remaining more or less independent after the fusion 



of the male and female pronuclei. 

 Gonoplasm. — Reproductive protoplasm. 

 Gonosomic Mosaic. — An individual whose gonads carry 



a lethal gene in every cell but whose somatic cells do not all 



carry this lethal. 

 Gonotokont. — Auxocyte, q.v. 

 Graafian Follicle. — A vesicle which in mammals, surrounds 



the ovum. 

 Grade. — An individual only one of whose parents (typically 



the sire) is a purebred. 

 Grading. — The mating of a scrub animal, or of a grade 



animal, to a purebred animal (usually the sire). 

 Graft. — An artificially induced vegetative fusion or union of 



parts from different individuals, the rooted part is called the 



stock and the part, or parts, inserted or otherwise vegetatively 



fused to it, the scion (s). 

 Graft Chimaera. — See Graft Hybrid. 

 Graft Hybrid. — A plant made up of two genetically distinct 



types of tissue, due to fusion after grafting ; graft chimaera. 

 Gravid. — Of a uterus: pregnant. 

 Group Variation. — Variation between different populations 



within a species, as distinct from "individual variation" which 



is the variation mithin a population. 

 Gynaecium, Gynoecium, Gynoeqeum. — The carpels or 



pistils in a flower. 



