A A cell with actively dividing nucleus is called interphase cell.
R Prokaryotic cells have a true nucleus.

Options

A. If both As and R are correct and R is correct explanation of As
B. If both As and R are correct but R is not correct explanation of As
C. If As is correct, R is wrong
D. If both As and R are wrong.

Answer

To solve the question regarding the assertion and reason provided, we will analyze both statements step by step.

### Step 1: Analyze the Assertion
The assertion states: "A cell with an actively dividing nucleus is called an interphase cell."

- **Explanation**: Interphase is the phase of the cell cycle where the cell is not actively dividing. Instead, it is preparing for division by duplicating its DNA and organelles. Therefore, a cell with an actively dividing nucleus would not be classified as an interphase cell but rather as being in the process of mitosis or meiosis.

### Step 2: Analyze the Reason
The reason states: "Prokaryotic cells have a true nucleus."

- **Explanation**: Prokaryotic cells are characterized by the absence of a true nucleus. Instead, they have a nucleoid region where their genetic material is located, but it is not enclosed by a nuclear membrane. In contrast, eukaryotic cells have a true nucleus that is membrane-bound.

### Step 3: Conclusion
Both the assertion and the reason are incorrect. The assertion mislabels interphase cells, and the reason incorrectly describes prokaryotic cells.

### Final Answer
Both the assertion and the reason are false.

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