A Biologist Used Microarrays to Examine How Gene Expression in a Fish

Multiple Choice

A biologist used microarrays to examine how gene expression in a fish changes with temperature.Refer to the table showing the expression levels of four (of several thousand) genes at varying temperatures.Values for expression have been normalized such that the expression at 15°C for any particular gene is always 100. What best describes the pattern shown by gene 789?

A) Its expression steadily increases with temperature.
B) Its expression steadily decreases with temperature.
C) Its expression first increases and then decreases as temperature increases.
D) Its expression first decreases and then increases as temperature increases.
E) Temperature has little or no effect on its expression.