(A) According to Clowes roots apex consists of an inverted cup like structure.
(B) Low amount of RNA, DNA and protein is characteristic of waiting meristem.
( c) Cells of reserve meristem can divide only when the root apex gets injured.

Options

A. All are correct
B. A and C are incorrect
C. A and B are incorrect
D. B and C are incorrect

Answer

To solve the question, we will analyze each statement one by one and determine their correctness based on biological principles regarding the anatomy of flowering plants, particularly focusing on root apices and meristems.

### Step-by-Step Solution:

1. **Analyzing Statement (A)**:
- The statement claims that "According to Clowes, the root apex consists of an inverted cup-like structure."
- Clowes proposed a theory known as the Weissend theory, which describes the root apex having a quiescent center that is indeed shaped like an inverted cup. This structure is crucial for the organization and function of the root meristem.
- **Conclusion**: This statement is **correct**.

2. **Analyzing Statement (B)**:
- The statement claims that "Low amount of RNA, DNA, and protein is characteristic of waiting meristem."
- In the context of root apices, the waiting (or quiescent) meristem has cells that are not actively dividing, which correlates with lower levels of RNA, DNA, and protein synthesis. This is because these cells are in a state of rest and do not require high amounts of these macromolecules.
- **Conclusion**: This statement is **correct**.

3. **Analyzing Statement (C)**:
- The statement claims that "Cells of reserve meristem can divide only when the root apex gets injured."
- Reserve meristem cells, which are typically quiescent, do have the ability to divide, but this division is often triggered by injury to the root apex. This allows for regeneration and repair of the root system.
- **Conclusion**: This statement is **correct**.

4. **Final Conclusion**:
- Since all three statements (A, B, and C) have been determined to be correct, the overall answer to the question is that **all statements are correct**.