Which Animal Is Likely to Have the Lowest Expression Level

question 19

Multiple Choice

Which animal is likely to have the lowest expression level of a Pax6-like gene?

• A)A surface-dwelling population of Astyanax mexicanus fish
• B)A cave-dwelling population of Astyanax mexicanus fish
• C)A fruit fly, Drosophila melanogaster
• D)A ribbonworm (Lineus sanguineus) developing normally

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Definitions:

Test-statistic

A value calculated from sample data during a hypothesis test used to determine the validity of the hypothesis.

Sample Size

The number of observations or elements selected from a population to participate in a statistical study.

Degrees of Freedom

The number of independent values or quantities that can vary in the statistical analysis of a given dataset.

Type I Error

The incorrect rejection of a true null hypothesis, also known as a "false positive."