Question

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

Answer 1

Explanation:

Alleles of a particular gene differ from each other genetically in their nucleotide sequences. As a result, their products and traits expressed could be different. Significance: Alleles add variability in the population. Variability is helpful in adaptability and forms the raw material for evolution.

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Answer 2

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Alleles are the alternative form of a gene present on homologous chromosomes.

They occupy the same position on a chromosome and affecting the same characteristic but in alternative ways.

Example :

As we know that plant is tall, it shows that (T) has expressed itself either in (TT) or(Tt) condition. In case of dwarf plant,dwarfness is due to expression of same gene but different allelic form (t) & only in recessive condition (tt).