In eukaryotes, DNA-binding proteins bind to DNA by which of the following DNA-binding structures? A) Cys₂His₂ zinc-finger domain B) homeodomain C) closed loops called lariats D) Cys₂His₂ zinc-finger domain and homeodomain E) Cys₂His₂ zinc-finger domain and closed loops called lariats

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Quizplus · Accepted Answer

Zinc-finger domains and homeodomains are both well-known DNA-binding structures in eukaryotes. Zinc-finger domains typically coordinate zinc ions to stabilize their folds, allowing them to interact with DNA. Homeodomains are part of a larger group of proteins that bind to specific DNA sequences to regulate gene expression. Lariats are not a DNA-binding structure but rather a lasso-shaped structure formed during RNA splicing.

In Eukaryotes, DNA-Binding Proteins Bind to DNA by Which of the Following