Gemmae are

Options

A. Unicelled structures
B. Multicelled asexual buds
C. Diploid sporophytic structures
D. Haploid sexual structures

Answer

**Step-by-Step Solution:**

1. **Understanding Gemmae**: Gemmae are structures found in certain plants, particularly in liverworts, that are involved in asexual reproduction. They are not unicellular; rather, they are multicellular structures.

2. **Nature of Gemmae**: Gemmae can be described as modified buds or tissues that can detach from the parent plant. Once detached, they can develop into new individual plants.

3. **Reproductive Process**: The process through which gemmae reproduce is known as asexual reproduction. This means that new individuals are formed without the fusion of gametes (sperm and egg).

4. **Clarifying Misconceptions**: It is important to note that gemmae are not diploid structures; they are haploid. This is because they develop from haploid cells, which is a characteristic of the gametophyte generation in the plant life cycle.

5. **Conclusion**: Therefore, gemmae are multicellular asexual structures that can give rise to new individuals without the need for fertilization.

**Final Answer**: Gemmae are multicellular asexual structures that detach from the parent and develop into new individuals.

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