Gene:
Genes are the part of the DNA. There are about 25000 to 35000 genes. It is the heredity generally passed from the parent to its child. For example: eye color, risk of diseases etc. The gene and allele are different in each and every human.
Allele:
An allele is the different sequences of DNA. It usually occurs in pairs. Alleles can be either homozygous or heterozygous. It is also known as alleleomorphs.
Differences:
| Basis | Gene | Allele |
|---|---|---|
| Definition (www.oxforddictionaries.com) |
A unit of heredity which is transferred from a parent to offspring and is held to determine some characteristics of the offspring. | Each of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome,. Also called allelomorph. |
| Synonyms | RNA, heredity and chromosome | Character, endowment, replication, inheritance and determinant |
| Pronunciation |
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| Word origin | The word gene was originated in 1911 from German Gen. | The word allele was originated in 1928 from German Allele, short for Allelomorph. |
| Refers to | A specific variation of a gene. | A section of DNA that controls a certain trait. |
| Its examples | Eye color, blood type and skin color | Blue eyes, green eyes, type A blood, black skin, white skin |
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