The risk of miscarriages. The reliability of the information from the screening procedure. Decisions about terminating pregnancy.
2 of 5
Polydactyly (having extra fingers or toes)
Caused by a dominant allele and can therefore be passed on by only one parent who has the disorder.
3 of 5
Cystic fibrosis (a disorder of cell membranes)
Caused by a recessive allele and must therefore be inherited from both parents. It can be passed on by parents who may be carriers of the disorder without actually having the disorder themselves.
4 of 5
Abnormal numbers of chromosomes
Some inherited conditions are caused by inheritance of abnormal numbers of chromosomes, eg Down’s Syndrome is caused by the presence of an extra chromosome.
5 of 5
Other cards in this set
Card 2
Front
The risk of miscarriages. The reliability of the information from the screening procedure. Decisions about terminating pregnancy.
Back
Concerns about embryo screening include
Card 3
Front
Caused by a dominant allele and can therefore be passed on by only one parent who has the disorder.
Back
Card 4
Front
Caused by a recessive allele and must therefore be inherited from both parents. It can be passed on by parents who may be carriers of the disorder without actually having the disorder themselves.
Back
Card 5
Front
Some inherited conditions are caused by inheritance of abnormal numbers of chromosomes, eg Down’s Syndrome is caused by the presence of an extra chromosome.
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