Which of the following pair of characters studies by Mendel will not shown independent assortoment ?

Options

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

Answer

To determine which pair of characters studied by Mendel will not show independent assortment, we need to analyze the principles of inheritance that Mendel established through his experiments with garden pea plants (Pisum sativum).

### Step-by-Step Solution:

1. **Understanding Mendel's Experiments**: Mendel conducted experiments on pea plants to study inheritance patterns. He focused on seven contrasting traits, which included seed shape, seed color, flower color, flower position, pod shape, pod color, and plant height.

2. **Dihybrid Cross**: A dihybrid cross involves studying the inheritance of two different traits simultaneously. For example, Mendel studied the shape (round vs. wrinkled) and color (yellow vs. green) of seeds.

3. **Law of Independent Assortment**: This law states that alleles for different traits segregate independently of one another during gamete formation. This means that the inheritance of one trait will not affect the inheritance of another trait, provided the genes are located on different chromosomes.

4. **Identifying Linked Genes**: However, if two genes are located close to each other on the same chromosome, they may not assort independently due to linkage. This results in a lower frequency of recombination between those traits.

5. **Analyzing the Given Options**:
- Flower color and flower position: These traits assort independently.
- Seed shape and seed color: These traits assort independently.
- Plant height and pod shape: These traits are likely to be linked since they are located on the same chromosome.
- Plant height and pod color: These traits are also likely to assort independently.

6. **Conclusion**: The pair of characters that Mendel studied which will not show independent assortment is **plant height and pod shape**. This is because they are likely to be linked due to their proximity on the same chromosome.

### Final Answer:
**Plant height and pod shape will not show independent assortment.**

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