6.1 Reproduction

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Question 25
Medium

A horse breeder has a stallion with a curly coat caused by a dominant mutation. The stallion is heterozygous (CcCcCc). The breeder crosses this stallion with a straight-coated mare, who is homozygous recessive (cccccc).

Draw a Punnett square diagram to show this genetic cross. Use the following symbols:

  • CCC = dominant allele for curly coat
  • ccc = recessive allele for straight coat

Identify the expected genotypes of the offspring, state their corresponding phenotypes, and determine the probability that an offspring will have a curly coat.

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6.1 Reproduction Questions

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