Which molecule stores genetic information in the nucleus?

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Prepare for the PLTW Biomedical Science Test. Study with flashcards and multiple choice questions, each question comes with hints and explanations. Get ready for your exam!

Multiple Choice

Which molecule stores genetic information in the nucleus?

Explanation:
At the heart of this question is how genetic information is stored in cells. In the nucleus of eukaryotic cells, DNA serves as the long‑term repository for the genetic instructions. Its sequence of bases carries the genes, and DNA can be accurately replicated so information is passed to new cells during cell division. RNA, while essential for expressing that information (it acts as a temporary copy used in protein synthesis), is not the storage form itself. Lipids and proteins have many roles, but storing the genetic blueprint in the nucleus is the job of DNA.

At the heart of this question is how genetic information is stored in cells. In the nucleus of eukaryotic cells, DNA serves as the long‑term repository for the genetic instructions. Its sequence of bases carries the genes, and DNA can be accurately replicated so information is passed to new cells during cell division. RNA, while essential for expressing that information (it acts as a temporary copy used in protein synthesis), is not the storage form itself. Lipids and proteins have many roles, but storing the genetic blueprint in the nucleus is the job of DNA.

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