Exploring DNA Structure

What does DNA stand for?

• Dioxyribose nucleic acid

• Dioxyribonucleic acid

• Deoxyribose nucleic acid

• Deoxyribonucleic acid

What is the primary function of DNA in a cell?

• To transport proteins

• To maintain cell structure

• To store genetic information

• To provide energy

Where is DNA located in eukaryotic cells?

• In the ribosomes

• In the cytoplasm

• In the nucleus

• In the mitochondria

In prokaryotic cells, where is DNA found?

• In the ribosomes

• In the cell membrane

• In the cytoplasm

• In the nucleus

What are the three components of a nucleotide?

• Phosphate, sugar, lipid

• Sugar, protein, nitrogen base

• Phosphate, protein, nitrogen base

• Phosphate, sugar, nitrogen base

Which of the following is NOT a nitrogen base in DNA?

• Thymine

• Uracil

• Cytosine

• Adenine

Which nitrogen bases pair together in DNA?

• Adenine with Thymine, Guanine with Uracil

• Adenine with Guanine, Cytosine with Thymine

• Adenine with Cytosine, Guanine with Thymine

• Adenine with Thymine, Cytosine with Guanine

What is the shape of the DNA molecule?

• Quadruple helix

• Single helix

• Double helix

• Triple helix

What type of bond holds the nitrogen bases together in the center of the DNA molecule?

• Covalent bond

• Ionic bond

• Metallic bond

• Hydrogen bond

Why are the hydrogen bonds in the center of the DNA molecule important?

• They provide structural support

• They allow the DNA to be easily replicated

• They prevent the DNA from breaking

• They help in protein synthesis