How are alleles of particular gene differ from each other? Explain its significance.

Explanation

### Step-by-Step Text Solution:

1. **Definition of Alleles**: Alleles are different forms of a gene that arise due to variations in the DNA sequence. Each individual has two alleles for each gene, one inherited from each parent.

2. **Differences Between Alleles**: Alleles can differ from each other in several ways:
- **Mutations**: Changes in the DNA sequence can lead to the formation of different alleles. These mutations can occur due to various factors such as environmental influences, errors during DNA replication, or can be inherited.
- **Functionality**: Different alleles may produce proteins that function differently or may not produce a functional protein at all. This can affect traits expressed in the organism.
- **Dominance Relationships**: Some alleles may be dominant, while others are recessive. This means that the presence of one allele can mask the expression of another.
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