Inherited diseases

• During IVF, it’s possible to remove a cell from each embryo and analyse its gene before being implanted, many genetic disorders can be detected like cystic fibrosis, a long with being allowed to get DNA from an embryo in the womb and test that fr disorders
• embryonic screening is quite controversial because of the decisions it can lead to
• embryo in the womb, screening can lead to the decision to terminate the pregnancy, while embryos produced by the IVF could destroy the ‘bad’ alleles
• FOR EMBRYONIC SCREENING 


  help people stop suffering

  Relating disorders cost a lot of money

  Laws stop it going too far
• AGAINST EMBRYONIC SCREENING 


  implies people with genetic problems are ‘undesirable’

  could cause people selecting the most ‘desirable’ child e.g blue eye blonde hair and smart

  screening is expensive
• cytsic fibrosis is a genetic disorder of the cell membranes resulting in the produce of thick, sticky mucus in the air passages and pancrease
• the allele which causes cystic fibrosis is a recessive allele 'f' carried by 1 out of 25 people but because it is recessive people with only 1 copy of the allele won't have the disorder, they are carriers
• polydactyly is when a baby is born with extra fingers or toes and is caused by a dominant allele 'D' so can be inherited if just 1 parent carries the defective allele