functional genomics

genetics

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July 19, 2026

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Functional genomics is a branch of genomics that focuses on understanding the function of genes and the proteins they produce at a broad, genomic level. It utilizes various techniques to analyze gene function, aiming to identify the complete set of proteins (proteome) encoded by an organism's genome, which broadly defines its cellular functions.12

Functional genomics also assesses function in relation to specific developmental stages by identifying the transcriptome, the set of mRNA transcripts made at those times. Technologies like microarrays are employed, where DNA samples representing genes are placed on a chip. Labeled mRNA from a test sample is applied, and fluorescent spots indicate which genes were transcribed, thus defining the transcriptome. This approach complements traditional genetic methods by starting with a known gene sequence and inducing mutations to understand its function.13

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Metabolomics as functional genomics
American evolutionary biologist Paul R. Ehrlich noted that genes do not shout, but they whisper, a principle evident in the moment-to-moment biochemistry of metabolism, which ultimately is the product of flexible interactions between genes and environmental factors (e.g., diet). In the mid-20th century,…
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American evolutionary biologist Paul R. Ehrlich noted that genes do not shout, but they whisper, a principle evident in the moment-to-moment biochemistry of metabolism, which ultimately is the product of flexible interactions between genes and environmental factors (e.g., diet). In the mid-20th century,…
Read More