10 Questions
What did Dmitri Ivanovsky research between 1887 and 1890?
The disease-causing destruction of plants
What was the first virus to be discovered?
Tobacco mosaic virus (TMV)
What year was the first electron microscope built?
1931
What is one key difference between bacteria and viruses?
Bacteria are living organisms, while viruses are nonliving particles
What is a type of virus that infects and replicates within bacteria?
Bacteriophage
What did Martinus Beijerinck call the infecting organisms?
Viruses
What is the estimated ratio of viruses to bacteria?
10 to 1
What did Dmitri Ivanovsky filter out of the infectious agent solution?
Bacteria
What year was the first image of poliovirus taken?
1952
What was developed in 1985?
Polymerase chain reaction (PCR)
Learn about viruses, small collections of genetic material surrounded by a protein coat, their replication process, and characteristics. Explore the difference between DNA and RNA viruses. The image depicts the herpes virus under an electron microscope.
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