Which statement describes the sugar in DNA?

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 $9.99Unlock all

Prepare for the AALAS LATG Test. Study with interactive flashcards and detailed multiple-choice questions, each with hints and explanations. Achieve your certification goals!

Multiple Choice

Which statement describes the sugar in DNA?

Explanation:
DNA uses deoxyribose, a five-carbon sugar in its backbone. The name “deoxyribose” means it lacks an oxygen atom at the 2′ position (it has hydrogen there), which is a key difference from the sugar in RNA, ribose. That missing oxygen helps give DNA its stability and shape as a long, stable double helix. Glucose and lactose are other types of sugars not used in the DNA backbone—glucose is a simple sugar mainly for energy, and lactose is a disaccharide found in milk. So the sugar in DNA is deoxyribose.

DNA uses deoxyribose, a five-carbon sugar in its backbone. The name “deoxyribose” means it lacks an oxygen atom at the 2′ position (it has hydrogen there), which is a key difference from the sugar in RNA, ribose. That missing oxygen helps give DNA its stability and shape as a long, stable double helix. Glucose and lactose are other types of sugars not used in the DNA backbone—glucose is a simple sugar mainly for energy, and lactose is a disaccharide found in milk. So the sugar in DNA is deoxyribose.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy