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Structure of DNA is conserved in all life forms. By comparing DNA of different organisms it is possible to document genetic change over time. Counting the number of nucleotide differences between species, in a segment of DNA, provides information on how long ago these species diverged from a common ancestor. The longer two species have evolved separately, the more nucleotide differences will be observed.

Sequencing the full genome of an organism provides the most comprehensive information about evolutionary history. Genes involved in vital cellular processes, such as respiration, are often used in evolutionary analysis because they’re present in most organisms. These are commonly termed as housekeeping genes. Scientists may also target genes with a known biological function. This approach is particularly useful in the study of diseases.

So, Molecular Biology will continue to play an important role in evolutionary classification as it clarifies the nature of genes and the sources of variation. Comparative analysis of DNA and proteins continues to give us an exquisitely detailed view of patterns of variation, common ancestry, and how evolution works.

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Genetic changes can only be determined by molecular biology. PCR technology is very important to detect changes in DNA. Certain molecular biology kits are always needed along with a well equipped molecular biology lab.

Molecular biology has clarified the character of genes and the resources of version.Molecular biology has also played a vital role in advancenment of science not only this, Comparative analysis of DNA and proteins keeps to provide us an exquisitely exact view of patterns of variant, common ancestry, and how evolution works.

Molecular biology has played a significant role in the field of evolutionary classification by providing new tools and techniques for analyzing the evolutionary relationships between different organisms. DNA technology, in particular, has allowed scientists to directly compare the genetic makeup of different species and use this information to classify them based on their evolutionary relationships.

One of the major ways in which molecular biology has influenced evolutionary classification is through the development of techniques for DNA sequencing and analysis. These techniques have allowed scientists to compare the DNA sequences of different species and identify differences and similarities that can be used to infer evolutionary relationships.

For example, scientists can use techniques like phylogenetic analysis to construct evolutionary trees that show the relationships between different species based on their DNA sequences. These trees can help scientists understand how different species are related to each other and how they have evolved over time.

In addition, molecular biology has also played a role in the development of new classification systems that are based on genetic information rather than traditional morphological characteristics. These systems can be more accurate and precise than traditional classification systems, and they have the potential to revolutionize the way that we think about evolutionary relationships between different species.

Overall, the role of molecular biology in evolutionary classification has been significant, and DNA technology is likely to continue to play a key role in shaping the future of this field.