Question

In Cucurbita stem vascular bundles are

• A. Radial
• B. Collateral
• C. Concentric
• D. Bicollateral

Answer 1

The correct option is D Bicollateral

Bicollateral vascular bundles contain two patches of phloem on either sides of the xylem on the same radius. The outer phloem or external phloem remains towards the periphery of the central cylinder and inner or internal phloem remains towards the centre. Bicollateral vascular bundles are present in plants of families Cucurbitaceae and Solanaceae

So, the correct answer is 'Bicollateral'