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
An employee with down syndrome insulted by customers. What Would You Do?

8. Investigation Before Explanation
# 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?

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

15. Trisomy 18 – Edwards Syndrome
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. Trisomy 13 – Patau Syndrome
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 project and 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)