Question

Is operon present in eukaryotes?

Answer 1

Operons:

1. Operon is the region of DNA that includes one or greater genes that encode the proteins needed for a selective function.
2. Operons are uncommon in eukaryotes as most structural genes are monocistronic.
3. But operons are located in nematodes such as C. elegans and the fruit fly, Drosophila melanogaster.
4. Eukaryotes lack operons due to the fact that gene regulation is complex, so it is hard to fit genes for regulation.