The invention of better microscopes has facilitated advancement in microbiology.
DNA synthesis
A microscope is used to observe microscopic things (things that cannot be seen with un aided eyes) such as cells and their organelles. With the advancement in science and technology, the quality and magnification of microscopes have improved remarkably. Nowadays, electron microscopes are so powerful that they can be used for detailed study of cellular machinery and also viruses. Thus, microscopes have played a great role in the advancement and our understanding of cell biology and microbiology.