Genetic Disorders Flashcards
What is a genetic disorder?
A disease caused by a faulty gene or chromosone
What is a recessive genetic disorder?
where the individual has inherited 2 faulty alleles, one from Mum and one from Dad
What is a dominant genetic disorder?
where the individual has inherited ONE faulty alleles. Either from Mum or Dad.
What is cyctic fibrosis?
An inherited disease that affect the lungs and the digestive system
How do you get cystic firbrosis?
If Mum or Dad has it or is a carrier
What happens with the lungs in cystic fibrosis?
They are coated in a flow of mucus
What does a person with cystic firbrosis have?
Thicker mucus than normal
Examples of genetically inherited disorders
Cystic fibrosis
Haemophilia
Polydactyly
Which allele is cystic fibrosis caused by?
The recessive allele
How many copies do you need to get cistic fibtosis?
Two copies of the allele to have the disorder
If a person has one copy of the dominant allele and one copy of ghe recessive allele, they are called a ………….
Carrier
