NEET Botany Secondary Growth MCQ Question
If the cambial ring in a dicot stem produces 60 layers of secondary xylem and 15 layers of secondary phloem in one year, what is the ratio of secondary xylem to secondary phloem produced?
4:1
3:1
2:1
5:1
Correct Answer
Detailed Explanation
The cambial ring is more active on the inner side, producing more secondary xylem than secondary phloem. Here, 60 layers of xylem to 15 layers of phloem results in a ratio of 4:1.
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