The 5’ end of a DNA strand is the end with the _____.Group of answer choices-PO₄⁻² group-OH groupNext
Question
The 5’ end of a DNA strand is the end with the _____.
Group of answer choices
- PO₄⁻² group
- OH group
Next
Solution
The 5’ end of a DNA strand is the end with the PO₄⁻² group.
In DNA structure, the 5’ end is characterized by a phosphate group (PO₄⁻²) attached to the fifth carbon atom of the sugar (deoxyribose), while the 3’ end has a hydroxyl group (-OH) attached to the third carbon of the sugar. The orientation of these groups is crucial for understanding DNA replication and transcription processes. Therefore, in the context of the given options, the correct answer is the phosphate group at the 5’ end.
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