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Question

Which type of meristem does ‘A’, ‘B’ and ‘C’ exhibit respectively?



A
Primary, Primary, Primary
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B
Primary, Secondary, Primary
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C
Primary, Secondary, Secondary
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D
Primary, Primary, Secondary
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Solution

The correct option is D Primary, Primary, Secondary
A – Apical Meristem – Primary Meristem
B – Intercalary Meristem – Primary Meristem
C – Lateral Meristem (Vascular Cambium & Cork Cambium) – Secondary Meristem
Both apical meristems and intercalary meristems are primary meristems because they appear early in life of a plant and contribute to the formation of the primary plant body.
The meristem that occurs in the mature regions of roots and shoots of many plants, particularly those that produce woody axis and appear later than primary meristem is called the secondary or lateral meristem. They are cylindrical meristems. Fascicular vascular cambium, inter-fascicular cambium and cork-cambium are examples of lateral meristems. These are responsible for producing the secondary tissues.
 

Biology

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