Genes and Inheritance Flashcards
1
Q
What is an allele?
A
An allele is a pair of genes that code for a certain characteristic. A chromosome carries the genetic information.
2
Q
What is an example of a genetic condition?
A
Cystic fibrosis, Sickle Cell Anaemia, Huntington’s Disease are all genetic condition.
3
Q
You need two copies of the faulty allele to have cystic fibrosis. This means that the allele is:
A
Recessive
4
Q
Where are chromosomes found in a cell?
A
Chromosomes are always found in the nucleus.
5
Q
What type of condition is sickle cell disease?
A
Two faulty copies of the allele are needed so the condition is recessive.
6
Q
Why do doctors use pedigree analysis/ punnet squares?
A
To work out the chance of a person inheriting a genetic condition
