V4 Inheritance 5

The lesson will start once everyone has done the following:


- Open your macbook
- Open the Huntington's disease assignment
- Join the lessonup
- Put away phones etc.
- Direct attention towards the front of the classroom
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Slide 1: Diapositive
BiologieMiddelbare schoolvwoLeerjaar 4

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The lesson will start once everyone has done the following:


- Open your macbook
- Open the Huntington's disease assignment
- Join the lessonup
- Put away phones etc.
- Direct attention towards the front of the classroom

Slide 1 - Diapositive

Program for today:
First half, with the whole group:
  • short discussion Huntington's assignment
  • overview of where we are in the Inheritance block
  • demonstration of Punnett square for a dihybrid cross
*break*
Second half, individually or in small groups:
  • practice with dihybrid cross
  • practice with sex-linked inheritance

Slide 2 - Diapositive

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

Slide 3 - Diapositive

Advice: read the introduction properly!

Slide 4 - Diapositive

What are the chances that the child from the assignment will get Huntington's disease?
A
1/4
B
1/3
C
1/2
D
3/4

Slide 5 - Quiz

Slide 6 - Diapositive

Is there a difference in risk between a boy (with XY) and a girl (with XX)?
A
yes
B
no

Slide 7 - Quiz

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

Slide 8 - Question ouverte

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

Slide 9 - Question ouverte

How do you calculate probabilities for a dihybrid cross?

Slide 10 - Diapositive

Inheritance: what have we done so far and what is still to come?
Done:
  • Vocabulary: genes, alleles, homozygous, heterozygous, dominant, recessive, carrier...
  • Incomplete dominance
  • Monohybrid crosses
Started:
  • Dihybrid crosses
  • Sex-linked inheritance (X-chromosomal)
Still to come:
  • Co-dominance
  • Multiple alleles
  • Lethal alleles
  • (Epigenetics)

Slide 11 - Diapositive

Flexible work time:
- First priority: Complete the dihybrid cross worksheet
- Second priority: Complete the worksheet sex-linked inheritance
- Optional: 
  • extra exercises dihybrid cross
  • choose an article about genetics to read (see Classroom)
  • help your classmates

You may work together (put everyone's names in the worksheet title)






Slide 12 - Diapositive