Who noted that the behaviour of chromosomes was parallel to the behaviour of genes and uses chromosomes movement to explain Mendel's law ?

Options

A. T.H. Morgan
B. Hugo de Vries
C. Sutton and Boveri
D. Beadle and Tatum

Answer

To solve the question, "Who noted that the behavior of chromosomes was parallel to the behavior of genes and uses chromosomal movement to explain Mendel's law?", we can follow these steps:

### Step 1: Identify the Key Concepts
The question revolves around the relationship between chromosomes and genes, specifically in the context of Mendel's laws of inheritance.

### Step 2: Recall Historical Contributions
We need to recall the contributions of scientists who worked on the chromosomal theory of inheritance. This theory suggests that genes are located on chromosomes and that their behavior during cell division explains Mendel's laws.

### Step 3: Focus on Specific Scientists
Two key figures in this context are Sutton and Boveri, who independently proposed the chromosomal theory of inheritance in 1902. They noted that the behavior of chromosomes during meiosis is analogous to the behavior of genes.

### Step 4: Confirming Findings
TH Morgan later confirmed these findings and was the first to associate specific genes with specific chromosomes. However, the question specifically asks who first noted the parallel behavior, which points back to Sutton and Boveri.

### Step 5: Conclusion
Based on the historical context and contributions, the correct answer to the question is that Sutton and Boveri noted the behavior of chromosomes parallel to that of genes.

### Final Answer
The answer is Sutton and Boveri.

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