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Question 43

A rabbit shows the dominant form of a characteristic. What does its appearance alone tell you about its genotype?

  1. It carries two dominant alleles, and this is certain
  2. It carries one allele of each kind
  3. It carries two dominant alleles or one of eachCorrect answer
  4. It carries two recessive alleles

Explanation

The dominant appearance is produced by a pair of dominant alleles and by a mixed pair alike, so looking at the rabbit cannot separate the two. Settling on the pair of dominant alleles ignores the mixed possibility, which no amount of looking can rule out.

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Question 43: A rabbit shows the dominant form of a characteristic. What… · Genetics Basics · Questena