[{"id": 1, "type": "multiple_choice", "options": ["A triple helix", "A double helix", "A circular loop", "A single strand"], "question": "What is the structure of DNA?", "correct_answer": "A double helix"}, {"id": 2, "type": "multiple_choice", "options": ["A double helix", "A triple helix", "A circular loop", "A single strand"], "question": "What is the structure of DNA?", "correct_answer": "A double helix"}, {"id": 3, "type": "written_response", "question": "Analyze the key principles related to \"Cosmology Practice\" and explain how they apply in laboratory or real-world settings.", "correct_answer": null}, {"id": 4, "type": "multiple_choice", "options": ["Covalent bond", "Hydrogen bond", "Ionic bond", "Metallic bond"], "question": "What type of bond involves the sharing of electrons?", "correct_answer": "Covalent bond"}, {"id": 5, "type": "multiple_choice", "options": ["The tilt of Earth's axis", "The gravitational pull of the Moon", "The distance from the Sun", "The speed of Earth's rotation"], "question": "What causes the seasons on Earth?", "correct_answer": "The tilt of Earth's axis"}]