Sci 9 Lesson 8 April 18  - Assisted Reproductive Technologies
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Sci 9 Lesson 8 April 18 - Assisted Reproductive Technologies






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Sci 9 Lesson 8 April 18 - Assisted Reproductive Technologies Presentation Transcript

  • 1. Homework from last class:
    • Complete the Check Your Understanding questions on
    • p. 223: 10, 12, 17, 18, 19, 20
  • 2. Chapter 6 pp. 224-230 Ch. 6.3 Assisted Reproductive Technologies
  • 3. Assisted Reproductive Technologies
    • Many people seek Assisted Reproductive Technologies (ART) if they are infertile.
    • Infertility: the inability of a couple to have a baby
    Most assisted reproductive technologies involve: 1) Removing eggs from the woman 2) Fertilizing the eggs 3) Returning the fertilized eggs to the uterus.
  • 4. Types of Assisted Reproductive Technologies
    • Artificial Insemination (AI): a reproductive technology that includes collecting sperm from a male and injecting into a female
    • AI is widely used to breed farm animals , especially dairy cattle
  • 5. Types of Assisted Reproductive Technologies
    • In Vitro Fertilization (IVF): technology used to treat specific fertility problems by fertilizing an egg cell in a petri dish
    • “ in vitro” means in glass
    • In IVF, egg and sperm are collected and fertilization takes place in a dish . Embryo(s) are then placed in the female’s uterus.
  • 6. Video – “In Vitro Fertilization”
  • 7. Types of Assisted Reproductive Technologies
    • Gamete Intrafallopian Transfer (GIFT): an assisted reproductive technology in which eggs and sperm are collected, mixed, then injected into the woman’s fallopian tubes.
    • Fertilization takes place inside the woman’s body
    • Intracytoplasmic Sperm Injection (ICSI):
    • a specialized procedure in which a single sperm cell is injected into an egg cell.
    • The zygote is then inserted into the woman’s uterus.
    • ICSI has a 25% success rate.
  • 8. The Impact of Assisted Reproductive Technologies on Society
    • Reproductive technologies can help childless couples, but may carry a higher risk of birth defects.
    • Q: Should we continue to use a technology that carries an extra risk?
    • Often ARTs result in “leftover” embryos.
    • Q: What should be done with them?
    • Most children conceived by AI will never know the identity of their fathers.
    • Q: Is it fair to a child to keep this information secret?
  • 9. Homework for next class:
    • Complete the “Types of assisted reproductive technologies” worksheet (p. 94 in BC Science 9 workbook) if not already completed in class
    • Complete Unit 2 Reproduction: Biology Review (Ch. 4-6) to prepare for the Ch. 4-6 Reproduction review next class
    • Begin working on 30 Ch. 6 cue cards due on the day of the Reproduction unit test (Ch. 4-6)
      • Tuesday, April 26 for Block 2-4
      • Wednesday, April 27 for Block 1-1
    • Read over class notes and check class blog
  • 10. Works Cited
    • Images taken from the following sources: