One of a number of genes, each of small effect, which together act to determine the phenotype of a quantitative trait. (FAO. 2001. Glossary of Biotechnology for Food and Agriculture http://www.fao.org/DOCREP/004/Y2775E/y2775e00.htm)
The organs and tissues involved in the production and maturation of gametes and in their union and subsequent development as offspring. (http://purl.obolibrary.org/obo/NCIT_C12841)
