Microbiology Diversity Quiz

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Which algae are MOST closely related to plants?

green algae

In contrast to bacterial endospores, fungal spores have substantially less resistance to

heat

The ability to form endospores in bacteria within Bacillales, Clostridiales, and Lactobacillales suggests the genotype/phenotype evolved

only once in an ancestor to these three orders, due to the high number of genes required

Which of the following is NOT a member of the Eukarya?

spirochetes

Microbial ________ studies the diversity of microorganisms and links their phylogeny with ________

systematics / taxonomy

At present there are four phyla in the domain Bacteria

False

The domain Archaea is divided into three phyla

False

Yeasts are immature fungal spores

False

Which statement is TRUE regarding fungal spores?

Fungal species produce unique spore structures that aid with identification

Which statement BEST describes the habitats of the fungi?

Most fungi are terrestrial, microscopic, and inhabit soil or dead plant matter

Which phylum of bacteria harbors the most functional diversity observed and also has the most cultured representatives?

Proteobacteria

Of the taxa listed, which is NOT classified as a protist?

Saccharomyces

Ribotyping

bypasses sequencing and sequence alignments, exploits unique DNA restriction patterns, and allows discrimination between species and different strains of a species

Oomycetes algea ("water molds") likely contain ________ in their cell walls, while most fungi have ________ in their cell walls

cellulose / chitin

You are studying 12 new isolates from the human skin. Their average nucleotide identity for shared orthologous genes is 97%. The isolates would most likely be

classified as individual strains of the same species

Which spores are NOT involved in sexual reproduction of fungi?

conidia

Which statement is TRUE regarding fungal spores?

Conidia are asexual spores, and both ascospores and basidiospores are sexual spores

Scientist believe that the majority of bacterial species on Earth have not been successfully cultivated

True

Some protozoa have multiple nuclei

True

Archaea are

a group of diverse microorganisms that inhabit almost every environment on Earth, including the colon of humans and other mammals


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