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Fertilization PowerPoint Presentation
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Fertilization

Fertilization

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Fertilization

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Presentation Transcript

  1. Fertilization http://www.youtube.com/watch?v=vXNaTRs83hE • Fertilization is the union of an egg cell and a sperm cell.

  2. Fertilization occurs in the fallopian tube. • The egg is capable of being fertilized for only about 18-24 hours after ovulation.

  3. Only one sperm will be able to enter the egg. • Once inside the egg the sperm’s nucleus will join with the egg’s nucleus. • The result of fertilization is the production of a new person, complete with a unique set of 46 chromosomes; 23 from the sperm and 23 from the egg.

  4. The newly fertilized egg will now begin the processes of DNA replication and mitosis.

  5. Early Signs of Pregnancy Sore breasts Fatigue Nausea Headaches Frequent Urination Backache

  6. Cramping Cravings or food Aversions Constipation or Bloating Mood Swings Increase in body temperature Super Smell

  7. Dizziness or fainting Spotting Late period Positive pregnancy test