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What are Mendelian disorders? Give an example?


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Solution

Mendelian disorders:

  1. Mendelian disorders are a form of genetic disorder that develops as a result of changes in one gene or anomalies in the genome.
  2. A disorder like this can be seen from birth and discovered through family lineage and the genealogical record.
  3. A mutation at a single genetic site causes Mendelian diseases.
  4. This gene could be found on either the autosome or the sex chromosome.
  5. It might take the form of a dominant or recessive trait.
  6. We can figure out if a disease-associated gene is present on an autosome or a sex chromosome by performing pedigree analysis on big families with many sick individuals.
  7. Pedigree analysis can also be used to determine if a phenotype is dominant or recessive.

Types of Mendelian disorders:

  1. According to Mendel's laws of heredity, there are several forms of Mendelian Disorders:
    1. Autosomal dominant
    2. Autosomal recessive
    3. X-linked dominant
    4. X-linked recessive
    5. Mitochondrial

Examples of Mendelian disorders:

  1. Sickle cell anemia
  2. Thalassemia
  3. Cystic fibrosis
  4. Haemophilia
  5. Skeletal dysplasia
  6. Muscular dystrophy
  7. Phenylketonuria

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