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Learning Task 18-02: Genetic Disorders Research and write a brief description of each genetic disorder. 1- Huntington...

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Biology

Learning Task 18-02: Genetic Disorders

  1. Research and write a brief description of each geneticdisorder. 1- Huntington Disease 2- Tay-Sachs Disease 3-MarfanSyndrome 4- Cystic Fibrosis 5-Duchenne Muscular Dystrophy
  2. For each disease, state the chances that a child would be bornwith the disease:
    • if one parent carries the gene; and
    • if both parents carry the gene.

  3. Explain how you arrived at your answers. Use Punnett squares tohelp justify your response for each disease.

Answer & Explanation Solved by verified expert
3.7 Ratings (638 Votes)
Answer1 Huntingtons DiseaseHD is a fatal inherited disease It is a neuraldisorder due to the degeneration of neurons secreting GABA incorpus striatum and substantia niagra It usually manifests in agegroup of 30 40 It is characterized by Chorea hypotonia anddementia In severe cases by lateral wasting of muscles occur Ithas no cure but some symptoms can be managed by Occupational andPhysio therapiesHD is inherited in an autosomaldominant pattern meaning that one copy of the altered gene in eachcell is enough to cause the disorder Child inheriting HD from bothparents will not survive to birthH represents the affected allele forHuntingtons disease and h is the normal allele Below is thePunnet square showing inheritance pattern of HD and percentages ofaffected individuals in each case2 Tay    See Answer
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