In Comparing Microarrays with Other Methods That Can Be Used

question 180

Multiple Choice

In comparing microarrays with other methods that can be used to study gene expression, when would microarrays be most useful?

• A) When you want a detailed investigation of how changes in the environment affect the expression patterns of a single, known gene
• B) When you want a detailed investigation of how a single, known gene changes its expression over time
• C) When you are interested in knowing how changes in a single, known gene affect the expression of many genes
• D) When you are interested in knowing how the expression of a single, known gene changes over evolutionary time
• E) When you are interested in whether males express a single, known gene at a higher level than females do

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Definitions:

Sample Size

Sample size refers to the number of observations or data points collected in a study.

Sampling Distribution

The arrangement of probabilities for a specified statistic, coming from a randomly chosen sample.

Sample Proportion

The fraction of the total sample that represents a particular trait or characteristic.

Normal Distribution

A probability distribution that is symmetric around the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.