Carolyn Webb. Players of St Therese's under-15 team are upset that they have to play against a 13-year-old boy who stands 185 centimetres tall. MEMBERS of a junior netball club have slammed a VCAT decision to allow a 185-centimetre tall, 13-year-old boy interim permission to play in an all-girls' competition.
For example, sickle cell anemia is one common genetic disorder that mainly affects individuals of African or Mediterranean descent. So whether you fear a genetic condition due to your ethnicityâor if a certain genetic disease is common throughout your ancestry; here are the ten most common DNA mutation disordersâ¦.
1. Single gene disorders: disorders caused by defects in one particular gene, often with simple and predictable inheritance patterns. 1  Dominant diseases: single gene disorders that occur when an individual has one altered copy of the relevant gene and one healthy copy.2  For example, Huntingtonâs disease.. Multifactorial disorders (complex diseases): disorders caused by changes in multiple genes, often in a complex interaction with environmental and lifestyle factors such as diet or cigarette smoke.