DNA: The Code of Life Quiz

What is the primary role of DNA in cellular activity?

• To store genetic information

• To protect the cell from viruses

• To transport nutrients

• To provide energy for the cell

Where is DNA primarily located within a cell?

• In the cell membrane

• In the nucleus

• In the mitochondria

• In the cytoplasm

What is the chromatin network?

• A network of proteins

• A condensed form of DNA

• A type of RNA

• A long, spaghetti-like structure of DNA

How many chromosomes do humans typically have?

• 92

• 46

• 23

• 69

What are chromatids?

• Single strands of DNA

• Proteins that bind DNA

• Identical arms of a replicated chromosome

• Segments of RNA

What is the basic building block of DNA?

• Lipids

• Amino acids

• Carbohydrates

• Nucleotides

What is the shape of a DNA molecule?

• Circular

• Triple helix

• Double helix

• Single strand

Which nitrogenous base pairs with adenine in DNA?

• Cytosine

• Guanine

• Thymine

• Uracil

What is one of the primary functions of DNA?

• To digest food

• To code for proteins

• To transport oxygen

• To store fats

How does DNA ensure the transfer of genetic information to the next generation?

• By forming new proteins

• By mutating frequently

• By dissolving in water

• By replicating itself