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MBIO 3401 EXAM 1 2025 QUESTIONS AND ANSWERS What is a microbe? How small does an organism have to be to be considered a microbe? - ....ANSWER ...-A microbe is a living organism that requires a microscope to be seen. Microbe diameter must be less than 0.15 mm. True or false: Some microbes can consist of a single cell. - ....ANSWER ...-True. A _____ is the total genetic information contained in an organism's chromosomal DNA. - ....ANSWER ...-Genome. What developed the first method of DNA sequencing fast enough to sequence large genomes? - ....ANSWER ...-Fred Sanger. What is a collection of sequences taken directly from the environment called? ....ANSWER ...-A metagenome. Ture or false: Each microbe has the capacity to reproduce its own kind. ....ANSWER ...-True. What is a cell community? - ....ANSWER ...-Many of the same kind of cell. Should plant and animal cells be considered microbes? - ....ANSWER ...-No. Plant and animal cells cannot reproduce their own kind indefinitely. Additionally, animal cells are differentiated and do not exist as independently or as communities. ...©️ 2025, ALL RIGHTS RESERVED 1