Chromosomes were first seen by
(a) Hofmeister
(b) Waldeyer
(c) Walter S. Sutton
(d) Crick and Watson

Options

A. Hofmeister
B. Waldeyer
C. Water S. Sutton
D. Crick and Watson

Answer

To answer the question "Chromosomes were first seen by," we need to evaluate each of the options provided:

1. **Option (a) Hofmeister**:
- Hofmeister is known for his work on the alternation of generations in plants, not for the discovery of chromosomes. Therefore, this option is incorrect.

2. **Option (b) Waldeyer**:
- Waldeyer is credited with being the first to observe and describe chromosomes. He recognized their significance in genetics. This makes option (b) the correct answer.

3. **Option (c) Walter S. Sutton**:
- Walter S. Sutton proposed the chromosomal theory of inheritance, which states that chromosomes are the carriers of genetic material. However, he did not first see chromosomes. Thus, this option is incorrect.

4. **Option (d) Crick and Watson**:
- Crick and Watson are famous for their discovery of the double helix structure of DNA, but they did not discover chromosomes. Therefore, this option is also incorrect.

Based on the evaluations above, the correct answer is **(b) Waldeyer**.

### Step-by-Step Solution:
1. **Evaluate Hofmeister**: Recognize that Hofmeister is associated with the alternation of generations in plants, not chromosomes.
2. **Evaluate Waldeyer**: Identify Waldeyer as the first person to observe and describe chromosomes, confirming this as the correct answer.
3. **Evaluate Walter S. Sutton**: Understand that Sutton contributed to the chromosomal theory of inheritance but did not discover chromosomes.
4. **Evaluate Crick and Watson**: Acknowledge that Crick and Watson are known for the double helix structure of DNA, not for discovering chromosomes.
5. **Conclusion**: Confirm that the correct answer is (b) Waldeyer.