Yes, algae have DNA. Because algae are eukaryotic organisms, they contain DNA located within a well-defined nucleus. The DNA exists as a linear strand.
Here's a breakdown:
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Eukaryotic Organisms: Algae are classified as eukaryotes, meaning their cells have a distinct nucleus and other membrane-bound organelles.
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DNA Location: The DNA in algae is found inside the nucleus, the control center of the cell.
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DNA Structure: The DNA in algae exists as a linear strand.
In summary, the presence of DNA is a fundamental characteristic of algae as eukaryotic organisms.