Different genes can influence the same trait from "summary" of El gen / The Gene: An Intimate History by Siddhartha Mukherjee
Genes are not solitary actors; they work in concert to shape the traits of an organism. Various genes can influence the same trait, each playing a unique role in the final outcome. These genes interact with one another in intricate ways, forming a complex network that determines the expression of a particular characteristic. The idea that multiple genes can impact a single trait challenges the simplistic notion of a one-to-one relationship between genes and traits. Instead, it reflects the intricate web of genetic interactions that underlie the complexity of biological systems. Each gene contributes a piece to the puzzle, working together with other genes to produce a coherent picture of an organism's traits. The concept of multiple genes influencing the same trait is particularly evident in the study of complex traits, such as height or intelligence. These traits are not governed by a single gene but are the result of the combined effects of many genes working in concert. This polygenic nature of complex traits highlights the need to consider the collective influence of multiple genes when trying to understand the genetic basis of a particular characteristic. Furthermore, the interaction between genes and environment adds another layer of complexity to the relationship between genes and traits. Environmental factors can influence gene expression, leading to variations in trait expression even among individuals with the same genetic makeup. This gene-environment interplay further underscores the need to adopt a holistic approach when studying the genetic basis of traits.- The concept of different genes influencing the same trait underscores the intricate nature of genetic regulation. Genes do not act in isolation but function as part of a complex network that determines the traits of an organism. Understanding the collective impact of multiple genes on a trait is essential for unraveling the genetic basis of complex characteristics.
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