Sutton united the knowledge of chromosomal segregation with Mendelian principles and called it the..........

Answer

**Step-by-Step Solution:**

1. **Understanding the Context**: The question asks about a theory proposed by Sutton that combines chromosomal segregation with Mendelian principles.

2. **Identifying Key Terms**: The key terms in the question are "chromosomal segregation" and "Mendelian principles".

3. **Recalling Historical Figures**: Walter Sutton is a significant figure in genetics, known for his work on chromosomes and inheritance.

4. **Connecting Concepts**: Sutton's work led to the understanding that chromosomes are the carriers of genetic information, aligning with Mendel's laws of inheritance.

5. **Naming the Theory**: The theory that combines these ideas is known as the "chromosomal theory of inheritance".

6. **Final Answer**: Therefore, the complete answer to the question is: "Sutton united the knowledge of chromosomal segregation with Mendelian principles and called it the chromosomal theory of inheritance."

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