20. Development
Plant Development
Multiple Choice
Multiple ChoiceThe homeotic gene GLABRA-2 controls cellular differentiation in the root epidermis of Arabidopsis. Which of the following statements is/are correct?
A
If GLABRA-2 is expressed, the cell produces a root hair.
B
If an epidermal cell borders one cortical cell, GLABRA-2 is expressed, and the cell produces a root hair.
C
If GLABRA-2 is not expressed, no root hairs are formed.
D
The first and second responses are correct.
E
If an epidermal cell borders two cortical cells, GLABRA-2 is not expressed, and the cell produces a root hair.
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