Hormone which regulate gene expression or chromosome by interation of hormone receptor complex with the genome are

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the type of hormones that regulate gene expression or chromosomes through interaction with hormone receptor complexes and the genome.

2. **Identifying the Type of Hormones**: The hormones that interact with the genome to regulate gene expression are typically steroid hormones. These hormones are lipid-soluble and can easily pass through the cell membrane.

3. **Mechanism of Action**: Once inside the cell, steroid hormones bind to specific receptors in the cytoplasm or nucleus. This hormone-receptor complex then interacts with the DNA in the nucleus, influencing gene expression.

4. **Physiological Effects**: The interaction of steroid hormones with the genome leads to physiological changes, such as tissue growth and differentiation, by modifying the information in the genetic material.

5. **Examples of Steroidal Hormones**: Common examples of steroid hormones include:
- Progesterone (in females)
- Estrogen (in females)
- Testosterone (in males)

6. **Conclusion**: Therefore, the hormones that regulate gene expression through interaction with hormone receptor complexes and the genome are known as steroidal hormones.

**Final Answer**: Steroidal hormones.

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