精子的英文怎么说
精子的英文: Artificial insemination: Introduction of semen into a female's vagina or cervix by means other than sexual intercourse. dizygotic twins arise from two separate eggs fertilized by two spermatozoa It is the only option for mil lions of men who are subfertile--that ismen who have low-motility sperm Antisperm maturation drug The majority of ejaculate is not sperm. The sperm sample is produced by masturbation. The mixture of sperm and accessory fluids is called semen. Doctor believed that his low sperm count was the problem. Parthenogenesis in which the egg is activated by sperm,but without fusion of the egg and sperm nuclei. A caplike structure at the anterior end of a spermatozoon that produces enzymes aiding in egg penetration. n. 精虫,精子 A caplike structure at the anterior end of a spermatozoon that produces enzymes aiding in egg penetration. A pore in the membrane covering the ovum of some animals through which a spermatozoon can enter. |