Which cells produce pepsinogen in the stomach?

a. brush border cells
b. chief cells
c. choanocytes
d. parietal cells
e. villi


B

Biology & Microbiology

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Typically ________ of ORFs in a genome cannot clearly be assigned a function. These ORFs are usually assigned and predicted to encode hypothetical proteins

A) < 1 % B) 5 % C) 30 % D) 90 %

Biology & Microbiology

James Watson, Francis Crick, Rosalind Franklin, and Maurice Wilkins are recognized for their contributions to the

discovery of the ____.

a. presence of nuclein (DNA) in white blood cells b. role of DNA in cells c. chemical components of DNA d. three-dimensional structure of DNA e. location of DNA in cells

Biology & Microbiology

A species that has a disproportionate impact on a community, relative to its abundance, is called a(n) ________ species

Fill in the blank(s) with correct word

Biology & Microbiology

Which of the following streptococci is associated with dental caries?

A) viridans streptococci B) Streptococcus pyogenes C) Streptococcus pneumoniae D) Streptococcus equisimilis E) Streptococcus arginosus

Biology & Microbiology