Quantitative genetics is a branch of genetics that deals with the inheritance of traits that are determined by multiple genes (polygenic traits) rather than a single gene. This field focuses on understanding how genetic and environmental factors contribute to the variation in traits within a population. Key aspects of quantitative genetics include: 1. **Traits**: Quantitative traits are typically measurable and can include characteristics such as height, weight, yield in crops, or susceptibility to diseases.
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Quantitative genetics studies how genetic and environmental variation contribute to continuously varying traits.