In eukaryotes , the process of DNA replication is :

Options

A. Semi - conservative and semi- discontinuous
B. Continuous and bidirectional
C. Semi - conservative and continuous
D. Both (A) and (B)

Answer

To solve the question regarding the process of DNA replication in eukaryotes, let's break it down step by step.

### Step-by-Step Solution:

1. **Understanding DNA Replication**: DNA replication is the process by which a cell duplicates its DNA before cell division. This ensures that each daughter cell receives an identical copy of the DNA.

2. **Nature of DNA Replication**: In eukaryotes, DNA replication is characterized as **semi-conservative**. This means that each new DNA molecule consists of one original (parental) strand and one newly synthesized strand.

3. **Semi-Discontinuous Replication**: In eukaryotes, DNA replication is also described as **semi-discontinuous**. This refers to the fact that replication occurs continuously on one strand (the leading strand) and discontinuously on the other strand (the lagging strand), which produces short segments known as **Okazaki fragments**.

4. **Evaluating the Options**:
- **Option A**: Semi-conservative and semi-discontinuous - This is correct as it describes the nature of DNA replication in eukaryotes.
- **Option B**: Continuous and bidirectional - This is not entirely accurate because while replication is bidirectional, it is not continuous on both strands.
- **Option C**: Semi-conservative and continuous - This is incorrect because replication is not continuous on both strands.
- **Option D**: Both A and B - This is incorrect since Option B is not accurate.

5. **Conclusion**: The correct answer is **Option A: Semi-conservative and semi-discontinuous**.