DNA structure and composition

What do you know about "DNA"?

What is DNA primarily responsible for in living organisms?

• Storing energy for cell activities.

• Providing structural support to cells.

• Storing genetic instructions and programming cell activities.

• Transporting oxygen throughout the body.

Which three components make up a single DNA nucleotide?

• A 6-carbon sugar, a phosphate group, and a protein.

• A 5-carbon sugar, a phosphate group, and a nitrogenous base.

• A fatty acid, a glycerol, and a nitrogenous base.

• An amino acid, a sugar, and a phosphate group.

What is a key difference between DNA and RNA?

• DNA is single-stranded, while RNA is double-stranded.

• DNA contains ribose sugar, while RNA contains deoxyribose sugar.

• DNA contains the base Thymine, while RNA contains Uracil.

• DNA is found in the cytoplasm, while RNA is found in the nucleus.

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What was Rosalind Franklin's significant contribution to understanding DNA?

• She discovered DNA itself.

• She discovered that DNA contains genetic information.

• She confirmed the helical structure of DNA and that the sugar-phosphate backbone was on the outside.

• She developed the first complete model of the double helix.

During DNA replication, which enzyme is responsible for unwinding the double helix?

• DNA Polymerase

• RNA Primase

• Helicase

• DNA Ligase