V4 Inheritance 5

The lesson will start once everyone has done the following:


- Open your macbook
- Open the Huntington's disease assignment
- Put away phones etc.
- Stop talking
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Slide 1: Diapositive
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The lesson will start once everyone has done the following:


- Open your macbook
- Open the Huntington's disease assignment
- Put away phones etc.
- Stop talking

Slide 1 - Diapositive

Goals for today:
  • Be able to calculate the chance of inheriting a trait/disease or of being a carrier in monohybrid and dihybrid inheritance
  • Be able to name exceptions to 'normal' monohybrid inheritance (e.g. X chromosomal)
  • Understand why you got the grade for the test that you did  

Slide 2 - Diapositive

Complete the Huntington's Disease assignment (see Classroom)
If you haven't checked your answers to the monohybrid inheritance worksheet Part A and B yet, do this first

You have the rest of the lesson to work on the assignment.
Work individually: your own opinion matters!
Usual rules: no phones (unless permission asked), yes music.





Slide 3 - Diapositive

Flexible work time:
- First priority: complete the Huntington's Assignment and hand it on on Classroom (we will discuss it this class)
- Second priority: Complete the dihybrid cross worksheet
- Optional: 
  • extra exercises dihybrid cross
  • choose an article about genetics to read (see Classroom)
  • help your classmates

You may work together with your neighbors.






Slide 4 - Diapositive

Huntington's Disease assignment: discussion
Expectations:
  • Have handed in the assignment
  • Have joined the lessonup
  • Have the assignment open on your computer
  • Give each other room to talk and be heard; listen
  • Actively participate

Slide 5 - Diapositive

What are the chances that the child (from the assignment) will get Huntington's disease?

Slide 6 - Question ouverte

Why isn't it possible to be a carrier for Huntington's?

Slide 7 - Question ouverte

What was the most important factor in your decision to have children or not?

Slide 8 - Question ouverte

Slide 9 - Diapositive

Slide 10 - Diapositive

Discuss with your neighbor:
1) Why does the disease primarily affect boys? (Remember, the gene is on the X-chromosome)
2) Is the allele for Duchenne's Muscular Dystrophy dominant or recessive?
timer
5:00

Slide 11 - Diapositive

What do you think dihybrid inheritance (or: a dihybrid cross) means?

Slide 12 - Question ouverte

Practicing dihybrid crosses
Goal: completing the dihybrid cross worksheet
If you are not sure how to do this, you can use:
- the examples on page ... of the book
- the video '...' in the classroom

Slide 13 - Diapositive

Discussing the test
- First: an announcement about question 7 and 8 
- Then: take 15 minutes to look at your test results and check your grade: grade = (points/33)x9 +1.
- After that, we will discuss the most difficult questions together
timer
15:00

Slide 14 - Diapositive