Which of the following combination seems to have some linkage in character selected by Mendel ?

Options

A. Stem height and pod colour
B. Flower colour and flower
C. Flower colour and flower position
D. Seed shape and seed colour

Answer

To determine which combination of characters selected by Mendel seems to have some linkage, we need to understand the concept of genetic linkage. Linkage occurs when genes are located close to each other on the same chromosome, which can affect how they are inherited together.

### Step-by-Step Solution:

1. **Understanding Linkage**:
- Linkage refers to genes that are located on the same chromosome and tend to be inherited together. If two traits are controlled by genes that are on different chromosomes, they are not linked.

2. **Identifying Mendel's Characters**:
- Mendel studied seven different traits in pea plants, including stem height, pod color, flower color, flower position, seed shape, and seed color.

3. **Analyzing the Options**:
- **Option 1**: Stem height and pod color
- Stem height is located on chromosome 4, and pod color is on chromosome 5. Since they are on different chromosomes, there is no linkage.
- **Option 2**: Flower color and flower position
- Flower color is on chromosome 1, and flower position is on chromosome 4. Again, these are on different chromosomes, indicating no linkage.
- **Option 3**: Flower color and flower position (repeated option)
- This is the same as option 2 and has the same conclusion: no linkage.
- **Option 4**: Seed shape and seed color
- Seed shape is on chromosome 7, and seed color is on chromosome 1. These are also on different chromosomes, so there is no linkage.

4. **Conclusion**:
- After analyzing all the options, it is clear that none of the combinations presented show linkage, as all the traits are located on different chromosomes.

### Final Answer:
None of the combinations listed show linkage in the characters selected by Mendel.