A Cell Biologist Is Studying the Role of Ribonucleoproteins in Normal

question 72

Multiple Choice

A cell biologist is studying the role of ribonucleoproteins in normal cellular function.  He prepares a cell extract using a specific cell type obtained from a 73-year-old man.  Ribonucleoproteins are separated and purified from the cell extract for structural and functional analyses.  These cells are found to express higher amounts of a particular protein in comparison to other cell types.  This protein has reverse transcriptase activity that functions to add TTAGGG repeats to the 3' end of chromosomes.  Which of the following cell types was most likely studied in this experiment?

• A)Epidermal basal cells
• B)Erythrocytes
• C)Myocardial cells
• D)Neurons
• E)Pancreatic β cells

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Definitions:

Equilibrium Quantity

At the market equilibrium price, the amount of goods or services that are supplied matches the amount that is demanded.

Equilibrium Price

The market price at which the quantity demanded of a good equals the quantity supplied, leading to a state of balance in the market.

Government Subsidy

Financial assistance provided by the government to businesses, individuals, or other governmental units in support of an activity deemed beneficial to the public.

Supply

The total amount of a product or service that is available to consumers, determined by factors such as price, production costs, and market demand.