Home > Science > Edexcel Science Topics > Classification, variation and inheritance > Genes and inheritance
Classification, variation and inheritance
What is an allele?
Another name for a chromosome
A genetic condition
A pair of genes that code for a certain characteristic
Which of the following is an example of a genetic condition?
You need two copies of the faulty allele to have cystic fibrosis. This means that the allele is:
Where are chromosomes found in a cell?
What type of condition is sickle cell disease?
A mixture of dominant and recessive
Why do doctors use pedigree analysis?
To work out the chance of a person inheriting a genetic condition
To check which animal breed is which
To work out how many males and females will be born in a family