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  • Genetically Inherited Diseases
    • Definition
      • A genetically inherited disease which is passed down from one person (parent) to another.
    • PKU
      • PKU is caused by a pair of faulty recessive genes. It causes problems for the person to digest protein. The faulty digestion produces a toxin which damages the body tissues including the brain.
      • All new baby's are given a screening test known as the heel prick test. If PKU is found then the person will be given a special diet.
      • The main feature is toxin in the blood.
      • The effects on health and well being is that it damages organs (brain)
      • The treatment is that the person is put on a special diet.
    • Huntington's Disease
      • It is inherited from a parent who has the disease. Symptoms usually appear from the age of 35.
      • The main feature is nerve (brain) cell damage.
      • It is caused by one faulty dominant gene.
      • The effects on health and well being is that it causes forgetfulness, clumsiness, loss of motor control and personality change,
      • The treatment is drugs to reduce the symptoms.
    • Colour Blindness
      • The main feature is that the person has difficulty in telling colours apart.
      • The causes include two faulty genes in females and one faulty gene in males.
      • The effects on health and well being include some problems with vision.
      • The treatment is tinted lenses.
    • Haemophilia
      • The main feature is hat the blood fails to clot.
      • The cause is one faulty gene in males.
      • The effects on health and well being include loss of blood, anaemia and internal bleeding.
      • The treatment is regular injections of clotting factor.
  • Down Syndrome
    • Genetically Inherited Diseases
      • Definition
        • A genetically inherited disease which is passed down from one person (parent) to another.
      • PKU
        • PKU is caused by a pair of faulty recessive genes. It causes problems for the person to digest protein. The faulty digestion produces a toxin which damages the body tissues including the brain.
        • All new baby's are given a screening test known as the heel prick test. If PKU is found then the person will be given a special diet.
        • The main feature is toxin in the blood.
        • The effects on health and well being is that it damages organs (brain)
        • The treatment is that the person is put on a special diet.
      • Huntington's Disease
        • It is inherited from a parent who has the disease. Symptoms usually appear from the age of 35.
        • The main feature is nerve (brain) cell damage.
        • It is caused by one faulty dominant gene.
        • The effects on health and well being is that it causes forgetfulness, clumsiness, loss of motor control and personality change,
        • The treatment is drugs to reduce the symptoms.
      • Colour Blindness
        • The main feature is that the person has difficulty in telling colours apart.
        • The causes include two faulty genes in females and one faulty gene in males.
        • The effects on health and well being include some problems with vision.
        • The treatment is tinted lenses.
      • Haemophilia
        • The main feature is hat the blood fails to clot.
        • The cause is one faulty gene in males.
        • The effects on health and well being include loss of blood, anaemia and internal bleeding.
        • The treatment is regular injections of clotting factor.
    • The main features are the facial appearance and the reduced intelligence.
    • It is caused by one extra chromosome.
    • The effect on health and well being is that there is a reduced school achievement.
    • The treatment is that the person receives a special education.
  • A chromosomal disorder. People with down syndrome have an extra chromosome so it is not a genetic disorder.
    • Down Syndrome
      • The main features are the facial appearance and the reduced intelligence.
      • It is caused by one extra chromosome.
      • The effect on health and well being is that there is a reduced school achievement.
      • The treatment is that the person receives a special education.

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