Fertilization

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Fertilization

  1. 1. Fertilization is the process by whichmale and female gametes fuse.
  2. 2.  ampullary region of the uterine tube
  3. 3.  Freshly ejaculated Spermatozoa unable to fertilize the oocyte it undergo 2 changes  to fertilize the ova (a) capacitation (b) acrosome reaction
  4. 4.  ``Capacitation is a period of conditioning in the female reproductive tract``  lasts approximately 7 hours.  occurs in the uterine tube  Much of this conditioning, entails epithelial interactions between the sperm and mucosal surface of the tube.  During this time, a glycoprotein coat and seminal plasma proteins are removed from the plasma membrane that overlies the acrosomal region of the spermatozoa.  Only capacitated sperm can pass through the corona cells and undergo the acrosome reaction.
  5. 5. www.kfmc1.com
  6. 6. www.kfmc1.com
  7. 7. 1. Restoration of the diploid number of chromosomes.2. Determination of the sex of the new individual.3. Initiation of cleavage.4. Trasportation of gentic features of parentes. www.kfmc1.com
  8. 8. The Acrosomal ReactionCaused by interaction of the sperm with molecules of the zona pellucida Interaction between sperm and egg is species specific

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