Mouse Genetics (One Trait)


Breed "pure" mice with known genotypes that exhibit specific fur colors, and learn how traits are passed on via dominant and recessive genes. Mice can be stored in cages for future breeding, and the statistics of fur color are reported every time a pair of mice breed. Punnett squares can be used to predict results.

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Assessment Questions (5):

  1. Which of the following is true about the genotype of the mouse shown below?

    White mouse
  2. Two black-fur mice are bred, and have the litter shown below. What is the most likely explanation for the presence of the white-fur offspring?

    Image of mouse parents and litter
  3. Two mice with white fur are bred. What will be true of the offspring?
  4. A pair of mice are bred several times, generating the following data table. What are the most likely genotypes of the parents?

    Results table
  5. Which of the following is a possible litter for two heterozygous black mice?

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