Which type of evidence for evolution is demonstrated by the similarity in DNA sequences of the FOXP2 gene in humans and chimpanzees?
- Comparative anatomy
- Biogeography
- Biochemical evidence
- Comparative embryology
BIOLOGY, M3 EQ-Bank 7
Describe one type of biochemical evidence that provides strong support for Darwin and Wallace's Theory of Evolution by Natural Selection. (2 marks)
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Answers could include one of the following:
Oxygen transporting proteins
→ Biochemical evidence supporting evolutionary relationships can be found in the similarities of oxygen-transporting proteins across species.
→ Haemoglobin, the primary oxygen-carrying protein in vertebrates, shows structural similarities across diverse animal groups, indicating a common ancestral origin.
→ This evidence supports Darwin and Wallace’s theory by demonstrating common descent with modification.
DNA
→ One type of biochemical evidence supporting evolutionary relationships is the similarity in DNA sequences and proteins across different species.
→ The more closely related species are, the more similar their DNA and protein sequences tend to be, indicating common ancestry.
→ In Australian marsupials, DNA analysis has revealed close genetic relationships between seemingly diverse species like the Tasmanian devil and the numbat.
→ By supporting their common evolutionary origin, DNA provides support for Darwin and Wallace’s Theory.
Show Worked Solution
Answers could include one of the following:
Oxygen transporting proteins
→ Biochemical evidence supporting evolutionary relationships can be found in the similarities of oxygen-transporting proteins across species.
→ Haemoglobin, the primary oxygen-carrying protein in vertebrates, shows structural similarities across diverse animal groups, indicating a common ancestral origin.
→ This evidence supports Darwin and Wallace’s theory by demonstrating common descent with modification.
DNA
→ One type of biochemical evidence supporting evolutionary relationships is the similarity in DNA sequences and proteins across different species.
→ The more closely related species are, the more similar their DNA and protein sequences tend to be, indicating common ancestry.
→ In Australian marsupials, DNA analysis has revealed close genetic relationships between seemingly diverse species like the Tasmanian devil and the numbat.
→ By supporting their common evolutionary origin, DNA provides support for Darwin and Wallace’s Theory.