Which of the following scientists conducted an experiment on 'killed yeast' to disprove the theory of spontaneous generation?

Options

A. Louis pasteur
B. S.L. Miller
C. A.I. Oparin
D. J.B.S. Haldane

Explanation

**Step-by-Step Solution:**

1. **Understanding Spontaneous Generation**: The theory of spontaneous generation posits that life can arise from non-living matter spontaneously. This idea was widely accepted before scientific experiments disproved it.

2. **Identifying the Experiment**: The question specifically asks about an experiment involving 'killed yeast' to disprove spontaneous generation. The experiment that is most well-known for addressing this theory was conducted by Louis Pasteur.

3. **Louis Pasteur's Experiment**: Pasteur designed an experiment where he used a flask containing broth. He boiled the broth to kill any microorganisms present, ensuring that the broth was sterile.

...