You Decide to Repeat the Meselson-Stahl Experiment,except This Time You

question 48

Multiple Choice

You decide to repeat the Meselson-Stahl experiment,except this time you plan to grow the E.coli cells on light ¹⁴N medium for many generations and then transfer them to heavy ¹⁵N medium and allow them to grow for 2 additional generations (2 rounds of DNA replication) .If the semiconservative model of DNA replication is correct,what is the expected distribution of DNA in the density gradient after two rounds of replication?

• A)One band of intermediate density.
• B)One band of intermediate density and one band of light density.
• C)One band of intermediate density and one band of heavy density.
• D)One band of heavy density and one band of light density.
• E)One band of heavy density.

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Definitions:

Total Product Curve

A graphical representation showing how the total output of a firm varies with the level of a single input, keeping other inputs constant.

Consumer Incomes

The total amount of income earned by consumers, influencing their purchasing power and demand for goods and services.

Average Product

The output produced, on average, by each unit of a variable input, such as labor.

Labor

Human effort, whether physical or mental, exerted in the production of goods and services.