Nucleic Acids and an RNA World

What does DNA stand for?

• Deoxyribonucleic Acid

• Dioxyribonuclic Acid

• Ribonucleic Acid

• Dihydroxynucloamide

DNA structure and function are specialized for ______.

• Versatility

• Catalysis

• Stability

• Evolution

Tags

NGSS.HS-LS1-1

The RNA world hypothesis proposes a time in evolution where RNA both stored genetic information and ______ its own replication.

• Halted

• Catalyzed

• Destroyed

• Ignored

Which component of a nucleotide contains nitrogen?

• Phosphate group

• Five-carbon sugar

• Nitrogenous base

• Water

What is the prime notation used for in pentose sugar carbons?

• To distinguish sugar carbons from base atoms

• To label the phosphate group

• To identify the nitrogenous base

• To mark the hydroxyl group.

Which group is labeled on the 3' carbon in the visual tip?

• Phosphate group

• Hydroxyl group

• Nitrogenous base

• Methyl group

The term 'deoxy' refers to the absence of which element?

• Hydrogen

• Oxygen

• Carbon

• Nitrogen

Which of the following bases are purines?

• Thymine

• Cytosine

• Guanine

• Uracil

• Adenine

Which of the following bases are pyrimidines (remember the mnemonic?)?

• Thymine

• Cytosine

• Guanine

• Uracil

• Adenine

Which sugar is found in RNA?

• Ribose

• Deoxyribose

• Glucose

• Fructose