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精子获能:人类和大多数哺乳动物的精子必须在雌性生殖道内停留一段时间,才能获得使卵子受精的能力,称为精于获能。
相关试题
- 1.sperm capacitation
- 2.The ________ of a sperm contains the enzymes essential for fertilization.
- 3.Specifically, where are sperm cells formed within the testes?
- 4.Sperm and eggs generally have a haploid number of chromosomes.
- 5.Only the sperm with acrosomal reaction can fuse with the secondary oocyte
- 6.Where does the union of a human egg and sperm usually occur in?
- 7.How many sperm does an adult man produce per day
- 8.Approximately how many sperm will be ejaculated by a normal fertile male during sexual intercourse?
- 9.The deliberate introduction of sperm into a female's cervix or uterine cavity for the purpose of achieving
- 10.A human gamete (egg or sperm cell) has （ ）
