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The sickle-cell disease is caused by a single point mutation in one allele of the beta [[hemoglobin]] gene, whereby a CCT codon is converted into TCT. The TCT then mistakenly encodes the [[amino acid]] serine instead of proline.
The sickle-cell disease is caused by a single point mutation in one allele of the beta [[hemoglobin]] gene, whereby a CCT codon is converted into TCT. The TCT then mistakenly encodes the [[amino acid]] serine instead of proline.
A point mutation cannot add new information to the genome. <ref>AIG article [http://www.answersingenesis.org/articles/2008/02/01/feedback-new-information]</ref>
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[[Category:genetics]]
[[Category:genetics]]
[[Category:diseases]]
[[Category:diseases]]