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The molecular clock is used to estimate the time of occurrence of events called speciation and radiation. The molecular data used for such calculations is usually nucleotide sequence for DNA or amino acid sequences for proteins. In other words, a protein is known as a molecular clock because it changes over time.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoProteins behave like a molecular clocks because by looking at the difference in the amino acid sequence of organisms, we can tell when the two or more organisms diverged. The greater the difference in the amino acid sequence, the earlier they organisms might have diverged. The smaller the number of difference in the amino acid sequence the closer to the current time they diverged. By this kind of a way, proteins can act as molecular clocks.
JPB
Wiki User
∙ 9y agoProteins tend to behave like molecular clocks on the way they sequentially diverge with increasing evolutionary distance between species. They behave like molecular clocks because of the existence of amino acid sequence in an organism.
Wiki User
∙ 9y agoThe main idea behind the model of a molecular clock is that neutral mutations accumulate at a steady rate.
Wiki User
∙ 9y agoA Molecular clock works using the genes of living species.
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