Which cells produce pepsinogen in the stomach?
a. brush border cells
b. chief cells
c. choanocytes
d. parietal cells
e. villi
B
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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 %
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
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
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