Walther Hesse and ________ Pioneered the Use of Agar as a Solidifying

Question

Walther Hesse and ________ pioneered the use of agar as a solidifying agent.
A) Louis Pasteur
B) Ferdinand Cohn
C) Robert Koch
D) Sergei Winogradsky

Accepted Answer

Robert Koch and Walther Hesse together pioneered the use of agar as a solidifying agent in microbiology. Hesse, influenced by his wife Fanny Hesse's suggestion, introduced agar-agar as a solid medium for culturing microorganisms, which was a significant advancement in microbiological methods.