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Friday, April 6, 2007

Multiple Alleles

Alleles are the alternative form of gene. Dominant allele is called Wild type and Recessive allele is called Mutant.

Characteristics

Multiple alleles occurs same locus in homologous chromosomes.

Only 2 alleles in a multiple series will be present in a diploid organism

Gametes bear only one allele as they are haploid

Multiple alleles controls same characters though their manifestation are different

They often show dominant recessive relation.


Examples for Multiple Alleles are

Coat Colour in Rabbits

ABO Blood Group

Self Sterility in Tobacco