In which of the following scenarios would a person experience an increase in blood flow? a. a factory worker cuts his hand on a machine and loses a pint of blood. b. fats and cholesterol accumulate in the blood which increases its viscosity. c. surface blood vessels constrict in response to cold temperaturesd. a person at rest begins to move heavy boxes of a flight of stairs

D. a person at rest begins to move heavy boxes of a flight of stairs

D. a person at rest begins to move heavy boxes of a flight of stairs

Explanation:

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this protocol provides a detailed procedure for chromatin immunoprecipitation (chip) to study the dna-protein interactions.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.