Log inSign up

MCAT Chemical and Physical Foundations of Biological Systems Flashcards: 5d Nucleotides Nucleic Acids

Study 5d Nucleotides Nucleic Acids in MCAT Chemical and Physical Foundations of Biological Systems with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

What base is found in DNA but not in RNA?

Tap card or press Space to flip

ANSWER

Thymine. DNA incorporates thymine for greater stability against cytosine deamination compared to uracil.

1 / 20

MCAT Chemical and Physical Foundations of Biological Systems: Foundational Concepts

You are hereNucleotides and Nucleic Acids (5D)20 cards

All flashcards

20 cards

What this deck covers

This deck focuses on 5d Nucleotides Nucleic Acids, giving you a quick way to review the definitions, rules, and examples that matter most for MCAT Chemical and Physical Foundations of Biological Systems.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 50Practice questions for this set
Investigators compare two 30-bp nucleic acid duplexes at 25°C in 100 mM monovalent salt. Duplex X is DNA:DNA; duplex Y is RNA:RNA with the same base sequence (with U in place of T). Circular dichroism indicates duplex Y adopts an A-form helix under these conditions, whereas duplex X adopts a B-form helix. The core concept is how sugar structure influences nucleic acid helical geometry. Which statement is most consistent with these observations? Assume both duplexes are perfectly complementary and of equal length; no chemical modifications are present.
Choose an answer

Keep your progress across every deck

Free account · cards you mark are saved to it