Escherichia coli grows in the large intestine and is instrumental in making ____

a. vitamin B12
b. bile
c. vitamin K
d. lipase
e. vitamin C


ANSWER: a

Biology & Microbiology

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Phenotypic similarity that evolved independently in different lineages is called ____

a. cladogenesis b. anagenesis c. embryogenesis d. homology e. homoplasy

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The evolution of many species from a single common ancestor is called

a. adaptive radiation b. punctuated equilibrium c. genetic drift d. disruptive selection e. microevolution

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Microarrays are created by robotically placing DNA on to a microscope slide and probing with

A. RNA from the tissue of interest. B. SNPs from the tissue of interest. C. another DNA from the tissue of interest. D. STSs from the tissue of interest. E. clone-by-clone sequencing.

Biology & Microbiology

The most abundant protein found in the extracellular matrix of animal cells is _____.

-collagen -pectin -cellulose -hemoglobin

Biology & Microbiology