IUPUI K356 Exam 1: Complete Q&A with Verified Solutions-2025/2026

Carl Woese - Classified organisms using their rRNA, leading to the three domains of life: eukaryotes, bacteria and archaea. Francesco Redi - Tried to disprove spontaneous generation theory. Did this by proving that maggots come from flies, not from meat. John Needham - Tried to prove spontaneous generation theory. Heated meat broth and then stoppered it; the broth still became cloudy. Louis Pasteur - Disproved spontaneous generation using Swan Neck Flasks. Developed pasteurization to prevent wine spoilage. Developed chicken cholera, rabies and anthrax vaccines. John Tyndall - Disproved spontaneous generation. Concluded that dust carried germs, so he developed a way to get rid of dust around broth. Even when exposed to air, the broth remained sterile. Edward Jenner - Used cowpox lesions to make a vaccine against smallpox. This was the first vaccine.