BIO UNIT 7 FINAL STUDY 😭💔

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7 Terms

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Homologous Structures

Similarities and differences among homologous structures help determine how recently species shared a common ancestor.

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Amino Acid Sequences

Closely related species have more similar amino acid sequences in proteins, showing shared ancestry.

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Weakness of Amino Acid Comparison

Can be affected by mutations.

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Comparison of Small Segments of DNA

Similar genes across species suggest inherited traits from a common ancestor.

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Weakness of Small DNA Segment Comparison

Only focuses on a small part of the genome, not representing overall relationships.

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Comparison of Genomes

The more similar the full genomes, the more closely related the species are.

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Weakness of Genome Comparison

Requires advanced technology and lots of data, which isn't always available.