Cystic Fibrosis (CF) is a recessively inherited disorder. A father is a suffer of CF, while the mother is normal and not a carrier. What is the chance their child will be a carrier of CF? Give your answer as a percentage.
First write a key for the alleles. (normal Allele=T. CF allele=t) If the mother is normal= TT Father is a suffer =tt. Then Draw a punnet diagram for the child Write a key for the punnet diagram. TT-normal. Tt-Carrier. tt-CF suffer This should show the chance of having a carrier child is 100%
NI
Related Biology GCSE answers
All answers ▸Cystic fibrosis is a genetic disorder caused by recessive alleles. Complete a Punnet square to show the inheritance of cystic fibrosis when both parents are carriers. State the probability of that a child born to these parents will have cystic fibrosis.
Describe one example of plant or animal adapted to their environment in order to increase their chances of survival
Explain how increased blood flow to an athletes muscles helps them to run
How does the heart pump oxygen around the body?