Flowering Is Often Delayed in Plants Whose Leaves Have Been

question 119

Multiple Choice

Flowering is often delayed in plants whose leaves have been eaten by herbivores You do an experiment in the lab where you remove leaves of different ages as different plants approach the day length that triggers flowering. You find that only stems with at least some mature leaves flower at the usual time. You conclude that:

• A)only mature leaves can sense photoperiod.
• B)plants without mature leaves lack the nutritional resources to flower.
• C)florigen cannot reach the shoot apical meristem from leaves that are still importing sugar.
• D)a reduction in auxin transport resulting from leaf removal promotes vegetative meristem identity.

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