Question:
During embryonal development in angiosperms, hypocotyl and a part of the radicle is formed by the lower tier of cells of the octant, whereas the other part of the radicle and root cap are formed by ____.
During embryonal development in angiosperms, hypocotyl and a part of the radicle is formed by the lower tier of cells of the octant, whereas the other part of the radicle and root cap are formed by ____.
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The hypophysis, the uppermost cell of the suspensor, forms the rest of the radicle and the root cap.
Updated On: Nov 12, 2026
- upper tier of cells of octant
- hypocotyl
- hypophysis
- haustorium
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept
In dicot embryo development, the octant has an upper and a lower tier of cells.
Step 2: Fate of the tiers
The upper tier forms the cotyledons and plumule. The lower tier forms the hypocotyl and part of the radicle.
Step 3: Rest of the radicle
The uppermost cell of the suspensor next to the embryo is the hypophysis. It divides to form the remaining radicle tip and the root cap.
Final Answer:
The hypophysis forms the rest of the radicle and the root cap. \[ \boxed{\text{(C) }\text{hypophysis}} \]
In dicot embryo development, the octant has an upper and a lower tier of cells.
Step 2: Fate of the tiers
The upper tier forms the cotyledons and plumule. The lower tier forms the hypocotyl and part of the radicle.
Step 3: Rest of the radicle
The uppermost cell of the suspensor next to the embryo is the hypophysis. It divides to form the remaining radicle tip and the root cap.
Final Answer:
The hypophysis forms the rest of the radicle and the root cap. \[ \boxed{\text{(C) }\text{hypophysis}} \]
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