Which molecule is the most abundant in the extracellular matrix of connective tissues?

a. collagen
b. cholesterol
c. fibronectin
d. albumin
e. elastin


ANSWER: a

Biology & Microbiology

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Which of the following are NOT found within the photosynthetic gene cluster of Rhodobacter (a purple phototrophic bacterium)?

A) genes encoding reaction center and light-harvesting photocomplexes B) genes encoding proteins involved in phycobiliprotein biosynthesis C) genes encoding proteins involved in bacteriochlorophyll biosynthesis D) genes encoding proteins involved in carotenoid biosynthesis

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The White Cliffs of Dover, England, are composed of shells of ancient diatoms

Indicate whether the statement is true or false.

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Genes are arranged in threadlike bodies called chromosomes

Indicate whether the statement is true or false

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Which of the following mutations would not result in antibiotic resistance?

a. Missense mutation b. Nonsense mutation c. Silent mutation d. Frameshift insertion e. Frameshift deletion

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