You and your genes (2)

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

Genetic disorders are caused by a particular allele of a single gene. Examples of genetic disorders are Huntington’s disease, fibrosis and haemophilia. A person with one recessive allele will not show the genetic disorder. However, they are a and can pass the allele to their .
Testing adults and for some of the alleles which cause disease can lead to difficult decisions which can be personal and controversial. These include whether or not to have children at all, and whether or not a pregnancy should be terminated. Also, it is possible that information from genetic testing could also be used by other people such as employers and companies.