Step 1: Definition of Apomixis.
Apomixis is a form of asexual reproduction in plants where seeds are produced without fertilization. The offspring is genetically identical to the parent. This process occurs when the ovule develops into a seed without the fusion of male and female gametes.
Step 2: Example of Apomixis.
A common example of apomixis is observed in certain species of Citrus (like lemon) and Dandelion. These plants produce seeds through mitotic division, ensuring that the offspring are clones of the parent.
Step 3: Conclusion.
Thus, apomixis allows plants to reproduce asexually and maintain genetic stability across generations.
Final Answer:
\[
\boxed{\text{Apomixis is asexual reproduction in plants, where seeds are formed without fertilization.}}
\]