Besides activating the egg, another role of a sperm is to carry to egg

Options

A. RNA
B. mitochondria
C. DNA
D. ribosomes.

Explanation

**Step-by-Step Solution:**

1. **Understanding Fertilization**: The process of fertilization involves the fusion of a sperm and an egg. This is a crucial step in sexual reproduction.

2. **Role of the Sperm**: One of the primary roles of the sperm is to activate the egg. This activation is essential for the egg to begin the process of development.

3. **Structure of the Sperm**: The sperm has a head that contains the nucleus. This nucleus is significant because it houses the genetic material.

4. **Genetic Material**: The nucleus of the sperm contains DNA, which is the genetic blueprint that will contribute to the formation of the new organism.

5. **Entry into the Egg**: During fertilization, the head of the sperm penetrates the egg, allowing the sperm's nucleus (with its DNA) to enter the egg.

6. **Formation of the Zygote**: Once the sperm nucleus enters the egg, it combines with the egg's nucleus, leading to the formation of a diploid zygote. This zygote contains genetic information from both parents.

7. **Conclusion**: Therefore, besides activating the egg, another crucial role of the sperm is to carry DNA to the egg. This DNA from the sperm provides the paternal genetic contribution, complementing the maternal DNA present in the egg.

8. **Final Answer**: The correct answer to the question is that the sperm carries **DNA** to the egg.

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