In Rhizopus ,sexual reproduction involves formation of two club shaped structures called

Options

A. Gametangia
B. Coenogametes
C. Progametangia
D. Suspensors.

Answer

To answer the question regarding the club-shaped structures formed during sexual reproduction in Rhizopus, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organism**: Recognize that Rhizopus is a type of fungus commonly known as bread mold and belongs to the class Phycomycetes.

2. **Understand Reproductive Methods**: Acknowledge that Rhizopus can reproduce both asexually and sexually.

3. **Focus on Sexual Reproduction**: Note that the question specifically asks about sexual reproduction in Rhizopus.

4. **Define Heterothallic Reproduction**: Understand that Rhizopus exhibits heterothallic sexual reproduction, meaning it requires two different mating types (thalli) to reproduce.

5. **Formation of Structures**: When the mycelium from two different thalli fuse, they form specialized structures.

6. **Identify the Structures**: The club-shaped structures formed during this process are called progametangia.

7. **Select the Correct Answer**: Based on the information, the correct answer to the question is "progametangia".

### Final Answer:
In Rhizopus, sexual reproduction involves the formation of two club-shaped structures called **progametangia**.

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