Which of the following is one of Koch\'s postulates that was only useful because

Question

Which of the following is one of Koch's postulates that was only useful because of one of Pasteur's previous discoveries? A. When introduced to a healthy individual, a culture of the suspect microbe causes disease. 8. Exposing a healthy individual to a weakened strain of bacteria induces protection from a disease. C. The suspect microbe is absent from healthy individuals D. The suspect microbe can be grown in pure culture in a lab from samples of a diseased individual. stion 2 If someone collects ribosomal sequences from a group of organisms, what is this data most useful fon A. Determining the types of environments where the organisms typically grow Ot Discerning ancient evolutionary relationships above the genus level c. Distinguishing closely related species from the same genus. D. Detecting horizontal gene transfer estion 3 What source of energy described as potentially important in the format t precursor molecules is also earby minerals with surfaces useful to help explain formation of biopolymers and proto-cells A Gamma rays B. Geothermal energy C.Electrical discharge O D. Shock waves uestion 4 Modern species definitions require each species to be a monophyletic group. What does this imply A. The group includes organisms with a single name & The group must be in pure culture and able to cause disease when introduced to a healthy host OC. The group includes all organisms derived from a common ancessor The group includes only organisms with genomes that reassociate > 70% uestion S What new technology did Antomy van Leeuwenhoek use to make an important contribution to the foundation of microbiology A. ight microscoge C. DNA sequencing O. repeated boiling for sterilization Ecells ave and Submit

Explanation / Answer

1-A- koch explained about pathogen causing disease.

2-C-Ribosome is related with protein formation.

3-B

4-A

5-A

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