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Which of the following is correct w.r.t monoplex type of shoot apical meristem?
It is seen in mango plant
It is seen in Gnetum
It is seen in Equisetum
It is seen in grasses
Answers (1)
Shoot Apex and the Theories related to Shoot Apex
- Shoot apex is derived from the meristem present in plumule of the embryo.
- It is present at the tip of the stem.
- The axillary bud represents the left behind cells of the shoot apical meristem. It is present in the axil of the leaves.
- Shoot apex is dome-shaped and the base of the meristem divides to form flanks of leaf primordia.
Types of Shoot Apex:
1. Monoplex Type: In this type of shoot apex, there is only a single apical cell that represents the shoot apical meristem. It is seen in higher algae, bryophytes and pteridophytes.
2. Simplex Type: In this type of shoot apex, there is a single layer of meristematic cells that represent the shoot apical meristem. It is seen in gymnosperms.
3. Duplex Type: In this type of shoot apex, there are multiple layers of meristematic cells that represent the shoot apical meristem. It is seen in angiosperms.
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Monoplex type of shoot apical meristem is seen in higher algae, bryophytes and pteridophytes.
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