EVOLUTION
EVIDENCE FOR EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It can be determined how efficient hemoglobin is for different species.
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It can determine relatedness between members of the same species.
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It can provide evidence about the relatedness of different species.
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It can show which species evolved first.
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Detailed explanation-1: -By looking for amino acid sequence differences between species, scientists can infer how closely or distantly related two species are in evolutionary time.
Detailed explanation-2: -Biologists have perfected techniques for determining the sequence of amino acids in proteins. By comparing the amino acid sequences in homologous proteins of similar organisms and of diverse organisms, evolutionary relationships that might otherwise go undetected can be determined.
Detailed explanation-3: -Biologists believe that the greater the similarity between the amino acid sequences of two organisms, the closer their relationship. Conversely, the greater the differences, the more distant the relationship.
Detailed explanation-4: -By comparing the order of amino acids that make up the protein Cytochrome C and noting the differences in the arrangement, scientists can infer relationships among species. In general, the more amino acids two species share, the more closely related they are in evolutionary time.
Detailed explanation-5: -Biologists often compare the sequences of related genes found in different species (often called homologous or orthologous genes) to figure out how those species are evolutionarily related to one another.