Huntington Disease• Neurodegenerative Genetic Disorder that affects
muscle coordination and some cognitive functions
• The disease is caused by a dominant mutation on the gene called huntington
• Any child of an affected parent has a 50% chance of inheriting the disease. If both parents are afflicted the risk jumps dramatically
Cystic Fibrosis• Noted by difficulty
breathing which results from frequent lung infections that can be treated though not cured.
• Caused as a result of homozygous recessive gene
• Unable to produce enzyme (protein) to break down mucus
Sickle-cell Anemia• A genetic blood disorder characterized by red blood
cells taking on an abnormal, rigid sickle shape• Individuals containing the homozygous recessive
form of the gene will develop the disease. However, individuals heterozygous for the gene are resistant to malaria
Down Syndrome• Caused by the presences of all or part of the 21st
chromosome• Associated with impairment of cognitive ability and
physical growth and a particular set of facial features
Karyotype – set of photographs of chromosomes grouped in order in pairs
Klinefelter’s Syndrome• Also known as XXY syndrome, A condition in
which males have an extra X sex chromosome.
Top Related