These parts of a cell are made of a sugar, phosphate, and nitrogenous base.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Virginia 7th Grade Science SOL Test. Incorporate flashcards and multiple choice questions, each with hints and detailed explanations. Ensure your success on the exam!

Multiple Choice

These parts of a cell are made of a sugar, phosphate, and nitrogenous base.

Explanation:
The basic unit of DNA and RNA is a nucleotide, which is made of a five‑carbon sugar, a phosphate group, and a nitrogenous base. The sugar and phosphate form the backbone of nucleic acids, linking together to create the long chains that store genetic information. The nitrogenous base is what encodes that information through its specific pairings: A with T (or U in RNA) and C with G. The sugar is deoxyribose in DNA and ribose in RNA, which helps determine the molecule’s structure. This combination distinguishes nucleotides from other macromolecules like proteins, carbohydrates, and lipids, which are built from different basic units.

The basic unit of DNA and RNA is a nucleotide, which is made of a five‑carbon sugar, a phosphate group, and a nitrogenous base. The sugar and phosphate form the backbone of nucleic acids, linking together to create the long chains that store genetic information. The nitrogenous base is what encodes that information through its specific pairings: A with T (or U in RNA) and C with G. The sugar is deoxyribose in DNA and ribose in RNA, which helps determine the molecule’s structure. This combination distinguishes nucleotides from other macromolecules like proteins, carbohydrates, and lipids, which are built from different basic units.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy