Sex-organs of pteridophytes are

Options

A. Multicelluar and jacketed
B. Unicellular and jacketed
C. Unicellular and non jacketed
D. Multicellular and non jacketed

Answer

To answer the question regarding the sex organs of pteridophytes, we can follow these steps:

### Step 1: Understand the Types of Sex Organs
Pteridophytes, which include ferns, have specialized structures for reproduction known as sex organs. These organs are responsible for producing gametes (male and female).

### Step 2: Identify the Sex Organs
The primary sex organs in pteridophytes are:
- **Antheridia**: These are the male sex organs that produce male gametes (antherozoids).
- **Archegonia**: These are the female sex organs that produce female gametes (eggs).

### Step 3: Determine the Characteristics of the Sex Organs
- **Multicellular vs. Unicellular**: The sex organs of pteridophytes are multicellular, meaning they are composed of multiple cells.
- **Jacketed vs. Non-jacketed**: The sex organs are jacketed, meaning they are covered by a layer of protective cells.

### Step 4: Conclusion
Based on the characteristics identified, we can conclude that the sex organs of pteridophytes are:
- **Multicellular and jacketed**.

### Final Answer
The correct option is **A: multicellular and jacketed**.

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