In some eukaryotic genes, there are some regions ,these regions helps to increase or enhance transcription. These regions, called enhancers, and are not necessarily close to the genes they enhance. They can be located upstream of a gene, within the coding region of the gene, downstream of a gene, or may be thousands of nucleotides away.
Enhancer regions are binding sequences, or sites, for transcription factors.
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x would be the most and the least would be y because there are more fruit and seeds than flock z has insects
Answer from: Quest
no i don't feel that humans have oversubscribed some medications