📖 what
What is polygenic inheritance?
Quick Answer
Polygenic inheritance means a trait is influenced by many genes rather than just one. Height and skin pigmentation are classic examples.
The Full Story
Polygenic traits are controlled by the combined effects of many genes, often across the whole genome. Each gene may contribute a small amount, and environmental factors can also shape the outcome. This is why traits such as height, body build and some disease risks form a spectrum rather than simple categories. Polygenic inheritance helps explain why many common human traits do not follow simple Mendelian patterns.
Key Facts
1.Many genes can contribute to one trait
2.Height is a classic polygenic trait
3.Environmental factors can also influence the result
YouTube Angle
Suggested video title for this topic:
"Why some traits can’t be explained by one gene alone"
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