Another exception to Mendel’s rules is polygenic inheritance, which occurs when a trait is controlled by more than one gene. This means that each dominant allele "adds" to the expression of the next dominant allele.\n\n
CK-12 (Middle School)
How is inheritance more complicated than Mendel's theories?
RST.1 - Analysis & Evidence, RST.4 - Key Terms
DEPTH OF KNOWLEDGE (DOK) LEVELS:
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