31. They have gonads that contain the ovary and spermatophore bunches in their gastrodermis. 32. It has transverse ridges away from the central axis that may be gonads . 33. The developing spleen forms near the urogenital ridge from which the gonads develop. 34. In mouse gonads , it has been detected only eleven days after fertilization. 35. The testicles are the male gonads where sperm and male hormones are produced. 36. These gonads may vary greatly in size and shape. 37. If the gonads receive the signal from the SRY gene they develop into testes. 38. Milt _ The gonads of a male fish; also known as soft roe. 39. Scientists can only fiddle with those hormones and hope the gonads get the message. 40. Other anterior-lobe hormones help regulate the growth and activity of the gonads .
