Genetics & Inheritance Flashcards
1
Q
How many chromosomes do humans have in each cell?
A
46
2
Q
What are autosomes?
A
The 22 pairs of non-sex chromosomes.
3
Q
What’s an X-linked genetic condition?
A
A genetic condition that occurs only on the X chromosome
4
Q
Why are X-linked genetic conditions more common in men?
A
Men only possess one X chromosome.
5
Q
Provide examples of X-linked genetic conditions.
A
- Red-green colourblindness
- Haemophilia – impaired blood clotting ability
6
Q
Provide an example of an autosomal dominant genetic condition.
A
- Huntington’s Disease - brain cells slowly die
7
Q
Provide an example of an autosomal recessive genetic conditions.
A
- Cystic Fibrosis
- Sickle Cell Anaemia
