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One source of information that is used to determine the relationships among different species is DNA. DNA bar coding and macroevolution research provide information at the species level.

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How is biochemical comparison different from other methods of determining evolutionary relationships?

Biochemical comparison involves analyzing genetic material or proteins to determine evolutionary relationships, while other methods (such as morphological comparison) may focus on physical characteristics. Biochemical data provides more precise and objective information about relatedness, as it is less influenced by external factors, such as environment or development, that can affect physical traits. Additionally, biochemical data can reveal similarities that are not evident based on external appearances.


Summarize how biochemical characters can be used to determine phylogeny?

Biochemical characters can be used to determine phylogeny by comparing molecular structure or function of molecules like DNA, RNA, proteins, and enzymes across different species. By analyzing similarities and differences in these biochemical markers, scientists can infer evolutionary relationships and construct phylogenetic trees to illustrate common ancestry and evolutionary history among different species. This approach provides a more objective and reliable method for understanding evolutionary relationships compared to morphological characteristics alone.


How has molecular evidence affected our understanding of modern evolutionary theory?

It largely supports anatomical evidence and provides more detailed information for specific relationships


What information can determine an atom's identity?

What is unique to each atom and provides the elemental identity of an atom is the number of protons in the nucleus. Only that.


What information does karyotype provide?

A karyotype provides information about the number, size, and structure of an individual's chromosomes. It can be used to diagnose genetic disorders, identify chromosomal abnormalities, and determine the sex of an individual.

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