Question

During secondary growth, a complete ring is formed by

• A. Only fascicular cambia
• B. Only interfascicular cambia
• C. Fascicular cambia and interfascicular cambia
• D. Fascicular cambia and Phellogen

Answer 1

The correct option is C Fascicular cambia and interfascicular cambia

In dicotyledons, layers of fascicular cambium within the individual vascular bundles are connected by cambium tissue between the bundles (the interfascicular cambium) to form a complete ring of tissue within the stem. This ring of cambium matures to become the vascular cambium, which permits the secondary growth of the dicotyledon stem.

So, the correct answer is 'Fasicular cambium and interfascicular cambium'.