Wednesday 19 May 2010

Mutasi

Mutations are changes in genetic material (DNA or RNA), both at the level of gene sequence (known as point mutations) or at the chromosome level. Mutations at the level of chromosomal aberrations are usually called. Mutations in genes can lead to the emergence of new alleles and the basis for supporting the evolution of the emergence of new variations on the species.
Mutations occur at low frequency in nature, are usually lower than individual 1:10.000. Changes in natural plant substances can occur due to mutations (mutagens, including carcinogens), solar radiation or radioactive, and electrical energy such as lightning leap.
Which shows changes in the nature of the individual (phenotype) due to the mutation is called a mutant. In genetic studies, mutants were normal compared with individuals who did not change the nature of (individual wild type or "wild type").

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