The Figure Shows the Number of Days to First Flowering

question 17

Multiple Choice

The figure shows the number of days to first flowering in populations of mustard plants before the 2000-2004 drought (on the left, in pale gray) , after the drought (on the far right, in dark gray) , and of hybrids between the before-and-after populations. According to this figure, which of the following statements is true?

• A) After the drought, plants flowered earlier in the season than those from before the drought.
• B) After the drought, plants flowered later in the season than those from before the drought.
• C) Hybrid plants flowered later in the season than those from before the drought.
• D) There was no change in flowering time associated with the drought.

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Definitions:

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