True or False: Whereas prokaryotes contain
16S rRNA genes, eukaryotes instead contain
20S rRNA genes

a. TRUE
b. FALSE


Answer: B

Biology & Microbiology

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Mycoplasma pneumoniae

A. does not cause pneumonia despite its name. B. is one of the causes of atypical pneumonia. C. causes pneumonia only in conjunction with viral activity. D. causes pneumonia more often than Streptococcus pneumoniae.

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Chitin strengthens the structure of some:

a. animals only b. plants only c. fungi only d. animals and fungi e. plants and fungi

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Homologues of the Sec protein translocation system are found in bacteria, eukaryotes, and archaea.

Answer the following statement true (T) or false (F)

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The fossil "hobbits" discovered in Indonesia may be a ________ that lived ________

A) newly discovered species of Homo; as recently as 18,000 years ago B) population of Homo sapiens with a genetic disorder; at the same time as the Neanderthals C) lineage of early hominins; about 5 million years ago D) dwarf lineage of Australopithecus; around the same time as "Lucy"

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