NEET 2007 Biology question

For a critical study of secondary growth in plants, which one of the following pairs is suitable?

(1)Wheat and maiden hair fern
(2)Sugarcane and sunflower
(3)Teak and pineCorrect
(4)Deodar and fern

Answer: (3)

Solution

Secondary growth (increase in girth by vascular cambium and cork cambium) occurs in dicotyledons and gymnosperms. Teak is a dicot tree and pine is a gymnosperm, so both show it. Wheat and sugarcane are monocots (no vascular cambium) and

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Question ID VK-089744