B1- You and your genes (B1.3)

?
  • Created by: Mosope
  • Created on: 25-04-16 19:58
How are some disorders caused (2 examples)?
they are caused by faulty alleles of a single gene (including Huntington's disease and cystic fibrosis )
1 of 11
What alleles is Huntington's disease caused by?
dominant alleles (H)
2 of 11
What alleles is Cystic Fibrosis caused by ?
recessive alleles (ff)
3 of 11
Symptoms of Huntington's disease?
late onset, tremor, clumsiness, memory loss, inability to concentrate, mood changes
4 of 11
Symptoms of Cystic Fibrosis?
thick mucus, difficulty breathing, chest infections, difficulty in digesting food
5 of 11
A person with one recessive allele (in a pair of alleles) will.... ?
they will not show the symptoms of the disorder, but is a carrier, and can pass the recessive allele to their children
6 of 11
Who can genetic testing be used on ?
Embryos, children, adults
7 of 11
Implications of genetic testing ?
1. Risk of miscarriage, 2. results may not be accurate e.g. false positive and false negative, 3. whether or not to have children at all, 4. whether or not a pregnancy should be terminated, 5. should other family members be informed
8 of 11
Implications of testing embryos for embryo selection prior to implantation ?
1. miscarriage risk, 2. small risk of infection, 3. results not 100% reliable
9 of 11
Implications of the use of genetic testing ?
insurance companies might refuse to give life insurance to people with the "wrong" alleles
10 of 11
Uses of genetic testing ?
testing embryos for embryo selection (pre implantation), predictive testing for genetic diseases, testing an individual before prescribing drugs
11 of 11

Other cards in this set

Card 2

Front

What alleles is Huntington's disease caused by?

Back

dominant alleles (H)

Card 3

Front

What alleles is Cystic Fibrosis caused by ?

Back

Preview of the front of card 3

Card 4

Front

Symptoms of Huntington's disease?

Back

Preview of the front of card 4

Card 5

Front

Symptoms of Cystic Fibrosis?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

science
biology
See all Biology resources »See all You and your genes resources »