A) two xylem mother cells
B) two phloem mother cells
C) one xylem and one phloem mother cell
D) one xylem or one phloem mother cell and one cambium cell.
Correct Answer: C
Solution :
: The vascular cambium undergoes two types of cell divisions-additive and anticlinical division. Additive divisions resulting in a cylinder of the secondary phloem (phloem mother cell) towards the outside and a cylinder of secondary xylem towards inside. More divisions occur towards the xylem resulting in the greater amount of secondary xylem than the secondary phloem in the stems. Anticlinical divisions result in circumferential expansion of the cambium.
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