1. goitrogen any substance that induces the formation of a goiter
  2. acrogen any flowerless plant such as a fern (pteridophyte) or moss (bryophyte) in which growth occurs only at the tip of the main stem
  3. origin the place where something begins
  4. Harijan belongs to lowest social and ritual class in India
  5. suppressor gene a gene that suppresses the phenotypic expression of another gene (especially of a mutant gene)
  6. sturgeon large primitive fishes valued for their flesh and roe
  7. regulator gene a gene that produces a repressor substance that inhibits an operator gene
  8. queen regent a queen who serves as ruler when the king cannot
  9. Gazania rigens decumbent South African perennial with short densely leafy stems and orange flower rays with black eyespots at base
  10. coherent marked by an orderly and consistent relation of parts
  11. estrogen a general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics
  12. aubergine hairy upright herb native to southeastern Asia but widely cultivated for its large glossy edible fruit commonly used as a vegetable
  13. Gehrig baseball player who died of amyotrophic lateral sclerosis
  14. acidic hydrogen a hydrogen atom in an acid that forms a positive ion when the acid dissociates
  15. oestrogen a general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics
  16. regulatory gene a gene that produces a repressor substance that inhibits an operator gene
  17. allergen any substance that can cause an allergy
  18. acid hydrogen a hydrogen atom in an acid that forms a positive ion when the acid dissociates
  19. suppresser gene a gene that suppresses the phenotypic expression of another gene (especially of a mutant gene)
  20. Sverige a Scandinavian kingdom in the eastern part of the Scandinavian Peninsula