Multiple choice

Which of the following can be regarded as an exception to Mendel's concept that genes are passed on, unchanged, from one generation to other?

  1. Codominance

  2. Multiple-alleles

  3. Stuttering alleles

  4. Incomplete dominance
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Stuttering or unstable alleles structurally change from generation to generation. Segments of these rare genes are doubled with each generation, resulting in an intensification of a trait. One form of muscular dystrophy apparently can follow this pattern.

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