The frequency of phenotypes of traits controlled by__ follows a bell-shaped curve

a) multiple alleles
b) polygenic inheritance
c) autosomal recessive inheritance
d) co-dominance

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Answer:

B

Explanation:

The frequency of phenotypes of traits controlled by__ follows a bell-shaped curve - b) polygenic inheritance

A polygenic trait

  • type of inheritance pattern
  • is one whose phenotype is influenced by more than one gene.
  • display a continuous distribution, such as height or skin color, are polygenic.
  • the frequency follows a bell-shaped curve
  • The bell shape suggests most people fall in the middle of the phenotypic range, while very few people are at the extremes

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