If the Correlation Coefficient Between Variables X and Y Is

question 8

Multiple Choice

If the correlation coefficient between variables X and Y is roughly zero, then ___.

• A) Y is independent of X
• B) Y is dependent on X
• C) there is a linear correlation between Y and X
• D) Y is not necessarily independent of X
• E) Y is caused by X.

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Definitions:

PCR

A laboratory technique used to amplify DNA sequences, making millions of copies of a specific DNA segment for analysis.

DNA Libraries

Collections of DNA fragments that are stored and maintained in a host organism and can be used for genetic research or engineering.

DNA Probe

A strand of nucleic acid that can be labeled and used to hybridize to a complementary molecule from a mixture of other nucleic acids.

Plasmid Cloning Vector

A small, circular DNA molecule used in genetic engineering to artificially replicate foreign genetic material within a host organism.