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Direct elongation of the radicle leads t...

Direct elongation of the radicle leads to the formation of_____root.

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### Step-by-Step Solution: 1. **Understanding the Question**: The question asks about the type of root formed due to the direct elongation of the radicle. 2. **Identifying the Radicle**: The radicle is the part of the plant embryo that develops into the primary root. It is the first part of the seedling to emerge during germination. 3. **Defining Direct Elongation**: Direct elongation refers to the straight growth of the radicle downwards into the soil, which is crucial for establishing the root system. 4. **Formation of Roots**: When the radicle elongates directly, it develops into the primary root. This primary root is the main root that grows directly from the seed. 5. **Understanding Root Types**: - The primary root is the first root that emerges and is typically thicker and longer. - Secondary roots can develop from the primary root later on, but they are not formed directly from the radicle. 6. **Final Answer**: Therefore, the direct elongation of the radicle leads to the formation of the **primary root**.
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Select correct statements from the following: a. In the majority of the dicotyledonous plants, the direct elongation of the radicle leads to the formation of the primary root. b. In monocotyledonous plants, the primary root is short-lived and is replaced by a large number of roots. These roots originate from the lowermost node of the stem and constitute the fibrous root system. c. Adventitious roots are found in Monstera and banyan tree. d. The fibrous root system is found in wheat and mustard plants.

In ul A of the dicotyledonous plants , the ul B elongation of the radicle leads to the formation of ul C . Choose the correct option.

Knowledge Check

  • The reaction of with RMgX, leads to the formation of :

    A
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    B
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    C
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    D
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