Biology - inherited disorders

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Cystic fibrosis is a disorder of cell ___
membranes
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It effects lungs, d___ system, and re___ system
Digestive and reproductive system
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What does it cause the body to produce?
Thick mucus
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It's caused by the ____ allele
recessive
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Define recessive allele
Only expressed if two copies are present ( no dominant allele are present)
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Does a person with fF allele have the disorder?
No, it's only if the f is homozgous (ff)
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What would you call someone who has Ff allele?
A carrier
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Polydactyly is a disorder that causes...
Extra fingers/toes to grow - no other problems
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Unlike cystic fibrosis, this disorder is caused by the ___ allele
domiant
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Will someone with Pp have the disorder?
Yes, unlike cystic fibrosis, this disorder can be is caused if just one dominant allele is present.
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Can the disorder be inherited by just one parent?
Yes. Even if the parent just Pp, the chances are 50/50 of their child having the disorder.
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Embryos can be screened for inherited disorders. List one way of doing this
IVF
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What happens during IVF?
Embryo is tested before implanted
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What risk is there by doing this?
May cause health issues
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The embryo's can be sampled and tested after implantation. List the advantages of this.
May limit suffering (prevent unhealthy child being born. Will reduce money needed for healthcare.
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List the disadvantages.
It's expensive, could lead to abortion, leading to trauma for the parents and questioned economical views (morals - is it wrong to prevent life?). Risks miscarriage
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Other cards in this set

Card 2

Front

It effects lungs, d___ system, and re___ system

Back

Digestive and reproductive system

Card 3

Front

What does it cause the body to produce?

Back

Preview of the front of card 3

Card 4

Front

It's caused by the ____ allele

Back

Preview of the front of card 4

Card 5

Front

Define recessive allele

Back

Preview of the front of card 5
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