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Populations (A-level only)

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Question 1

Copper toxicosis is an autosomal recessive genetic disorder affecting certain dog breeds, causing chronic liver disease due to copper accumulation. In a breeding population of Bedlington Terriers, 32%32\%32% of the dogs are identified as heterozygous carriers for the disease-causing allele.

The wild-type dominant allele is known to be more common in this population than the recessive disease-causing allele.

Use the Hardy-Weinberg principle to calculate the percentage of dogs in this population that are expected to be affected by copper toxicosis. Show your working.

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Populations (A-level only) Questions

  1. A Level
  2. /Biology
  3. /Populations (A-level only)