5.7 Tracing your family history

When a gene is located on the X-chromosome, we call this a ...
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BiologieMiddelbare schoolhavo, vwoLeerjaar 3

Cette leçon contient 10 diapositives, avec quiz interactifs, diapositives de texte et 1 vidéo.

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When a gene is located on the X-chromosome, we call this a ...

Slide 1 - Question ouverte

Can a man be a carrier for a sex-linked-gene?

Slide 2 - Question ouverte

Why do men have a higher chance of expressing a sex-linked-gene in their phenotype?

Slide 3 - Question ouverte

PEDIGREES

Slide 4 - Diapositive

Slide 5 - Vidéo

LET'S PRACTISE 
Could this disease be ...

a. autosomal dominant? 
b. autosomal recessive? 
c. X-linked dominant? 
d. X-linked recessive? 

Yes / No ? Explain your answer. 

Slide 6 - Diapositive

Autosomes
Autosomes
'Normal' genes
AA - Aa - aa
Sex chromosomes
Sex-linked genes
XHXH - XHXh - XhX
XHY - XhY

Slide 7 - Diapositive

LET'S PRACTISE 
Could this disease be ...
a. autosomal dominant? No
b. autosomal recessive? Yes
c. X-linked dominant? No
d. X-linked recessive? Yes

Yes / No ? Explain your answer. 

Slide 8 - Diapositive

LET'S CHECK THE HOMEWORK
Download the answers from SOM &
Discuss the answers with a classmate. 

Slide 9 - Diapositive

LET'S PRACTISE!
Download the exercises linked on SOM. 
Answer the exercises to practise how to calculate probabilities & apply your knowledge on mutations. 

Slide 10 - Diapositive