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

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Presentation on theme: "Unit 4, Day 4 Genetics & Human Development Thu, Jan 24 th (Block, 115 min) Fri, Jan 25 th (Block, 85 min)"— Presentation transcript:

1 Unit 4, Day 4 Genetics & Human Development Thu, Jan 24 th (Block, 115 min) Fri, Jan 25 th (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 1.Stages for pregnancy? Dilation, Expulsion, Placental Stage? 2.Ages for each stage of life? 3.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? ▫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 Trisomy 21 – Down Syndrome Most common trisomy Delay in learning Small chin, face is flat & broad, short neck Teacher Notes (Page 37.C)

15 Trisomy 18 – Edwards Syndrome 2 nd 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 Teacher Notes (Page 37.C)

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

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 1 st Project Due Date: February 4 th (odd periods), February 5 th (even period) ▫Digital Scrapbook (Journal Entries and Photos) ▫PSA and Pamphlet (will work on these next week)


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