Disorders Caused by Recessive Alleles Notes

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Disorders Caused by Recessive Alleles Notes

• 7b. Alleles that are lethal in a homozygous
  individual may be carried in a heterozygote and
  thus maintained in a gene pool.

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Objective

• Relate dominant-recessive patterns of inheritance
  in autosomal chromosomes to genetic disorders.

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Vocabulary

• Carrier

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• Some genetic disorders, such as cystic fibrosis,
  are inherited according to Mendels principles.
• (Figure on board)

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Carrier

• Does not show disease symptoms, but can pass on
  the disease-causing allele to offspring.