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Unit 4, Day 4

Unit 4, Day 4. Genetics & Human Development Thu, Jan 24 th (Block, 115 min) Fri, Jan 25 th (Block, 85 min). Homework Due Today (0 min) - Stamp. Human Development YouTube Video Notes & Problems (Page 37.F) Egg. Daily Question. Page 37.A

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Unit 4, Day 4

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  1. Unit 4, Day 4 Genetics & Human Development Thu, Jan 24th (Block, 115 min) Fri, Jan 25th (Block, 85 min)

  2. Homework Due Today (0 min) - Stamp • Human Development YouTube Video Notes & Problems (Page 37.F) • Egg

  3. Daily Question • Page 37.A • If you were to die today, what would be your epitaph? (the phrase on your tombstone) Why would you want that to be your epitaph?

  4. Homework CFU Page 37.F • Stages for pregnancy? Dilation, Expulsion, Placental Stage? • Ages for each stage of life? • Puberty symptoms for boys and girls? Ages?

  5. Essential Skills and Knowledge • Page 37.A • 2.2.D (Juvenile Stages): I can describe the different developmental characteristics of a human being throughout various stages of their growth including the human neonate, infant, toddler, preschooler, elementary, junior high, and high school. • 2.2.E (Adulthood): I can describe the different developmental characteristics of a human being throughout various stages of adulthood.

  6. Transition and Warning • Genetic disorders resulting from mistakes in meiosis

  7. Hook • http://www.youtube.com/watch?v=VMnY5578YQ0 • An employee with down syndrome insulted by customers. What Would You Do?

  8. Investigation Before Explanation • http://www.youtube.com/watch?v=EA0qxhR2oOk • # chromosomes in a gamete with zero copies of a chromosome? • If fertilized with a normal gamete, how many total chromosomes would the zygote have? • # chromosomes in a gamete with two copies of a chromosome? • If fertilized with a normal gamete, how many total chromosomes would the zygote have?

  9. Teacher Notes (Page 37.C) • Nondisjunction: Failure of chromosomes to separate normally during meiosis • In general, risks increase with mom’s age

  10. Student Practice (Page 37.C) • If nondisjunction occurs to the homologous pairs, how many total chromosomes end up in each of the four gametes? • If nondisjunction occurs to the sister chromatids, how many total chromosomes end up in each of the four gametes?

  11. Teacher Notes (Page 37.C) • Monosomy: Loss of a chromosome (2n-1) • Only survivable monosomy: Turner Syndrome • Only one X chrom. (girls) • Short, swelling, broad chest, low-set ears, webbed necks • Non-working ovaries • Difficulties in mathematics and memory

  12. Student Practice (Page 37.C) • A human being with monosomy has __ chromosomes.

  13. Teacher Notes (Page 37.C) • Trisomy: Addition of a chromosome (2n+1)

  14. Teacher Notes (Page 37.C) Trisomy 21 – Down Syndrome • Most common trisomy • Delay in learning • Small chin, face is flat & broad, short neck

  15. Teacher Notes (Page 37.C) Trisomy 18 – Edwards Syndrome • 2nd most common trisomy • 80% female • Majority die before birth • Low survival rate • heart abnormalities, kidney malformations, etc. • Symptoms: small head , malformed ears, widely spaced eyes, clenched hands

  16. Teacher Notes (Page 37.C) Trisomy 13 – Patau Syndrome • >80% die in 1st year • Severe heart and kidney defects • Mental retardation, eye defects, extra fingers, low-set ears, deformed feed

  17. Student Practice (Page 37.C) • A human being with trisomy has __ chromosomes.

  18. CFU • Rate 1-10 • Human Development • Genetic Disorders Resulting from Mistakes in Meiosis

  19. Lecture Activity • Partner 1 draw nondisjunction if it occurs to the homologous pairs • Partner 2 draw nondisjunction if it occurs to the sister chromatids • Prophase I  Metaphase I  Anaphase I  Telophase I  Prophase II  Metaphase II  Anaphase II  Telophase II

  20. Project Activity • Homework due on Monday/Tuesday • Rough drafts of 4 journal entries • Pregnancy, birth, infancy, toddler, elementary, junior high, high school, college • Go over journal entry specifications • Work on these four journal entries • Announcement: I am taking out the budget portion of the projectand the choosing of life events out of a bag

  21. Homework • Homework due on Monday/Tuesday • Rough drafts of 4 journal entries • Pregnancy, birth, infancy, toddler, elementary, junior high, high school, college • Unit 4 Exam: Friday, February 1st • Project Due Date: February 4th (odd periods), February 5th (even period) • Digital Scrapbook (Journal Entries and Photos) • PSA and Pamphlet (will work on these next week)

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