Suppose the Experiment of Meselson and Stahl Was Performed on a Sample

question 32

Multiple Choice

Suppose the experiment of Meselson and Stahl was performed on a sample of 8 cells, each containing one copy of its circular double-stranded DNA genome, and that had been growing on normal ¹⁴N medium.You then grew the cells for 3 generations in medium containing ¹⁵N.The outcome would be

• A)8 cells with single-stranded DNA molecules with ¹⁴N, and 24 cells with single-stranded DNA molecules with ¹⁵N.
• B)16 cells with double-stranded DNA molecules with equal amounts of ¹⁴N and ¹⁵N, and 48 cells with double-stranded DNA molecules with ¹⁵N.
• C)8 cells with double-stranded DNA molecules with equal amounts of ¹⁴N and ¹⁵N, and 24 cells with double-stranded DNA molecules with ¹⁵N.
• D)8 cells with double-stranded DNA molecules with equal amounts of ¹⁴N and ¹⁵N, and 32 cells with double-stranded DNA molecules with ¹⁵N.
• E)65 cells with single-stranded DNA molecules with ¹⁵N.

Identify the necessary steps towards self-empowerment.

Understand how to interpret and use regression analysis and coefficient values.

Analyze scatterplots and identify appropriate models and trends.

Interpret the significance of correlation in real-world datasets.

---

Definitions:

Null Hypothesis

A statement used in statistics that proposes there is no effect or no difference, and it serves as a starting point for testing against observational data.

Bonding Strength

The measure of the force required to separate two bonded surfaces.

Thermal Protection Tiles

Specialized tiles used on spacecraft to protect against the extreme heat generated during reentry into Earth's atmosphere.

Null Hypothesis

A default hypothesis that there is no relationship between two measured phenomena or no association among groups being studied.