Multiple choice

If there is a single pair of alleles that controls the number of toes for an insect species and homozygous dominant individuals have 7 toes, heterozygous ones have 6 and homozygous recessive ones have 5, the inheritance pattern would be referred to as

  1. genome imprinting

  2. intermediate expression

  3. pleiotropy

  4. codominance
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B Correct answer
Explanation

This hypothetical example would be an example of the intermediate expression of a trait. Apparently, this is rare. For most genes, it is expected that individuals with heterozygous genotypes will have phenotypes like homozygous dominant individuals.

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