28-10-16 - WEEKLY REFLECTION
This week, we learned about pedigrees and how to read them. A pedigree is a tool to help identify the carriers and non-carriers of a specific gene, often a disorders or a genetic condition, in order to help predict future offsprings and the possibility that they would inherit that specific gene. These disorders can be dominant or recessive. Dominant genetic disorders show up more often in a pedigree than recessive genetic disorders, because for an offspring to inherit a recessive genetic disorder, one parent would have to be homozygous recessive for the disorder and the other would have also have to be homozygous recessive a well or heterozygous. An example of dominant genetic disorder is haemophilia, whilst an example of recessive genetic disorder is Tay-Sachs disease.