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6. Snake fang evolution is characterised by expression of what gene?
- Sonic hedgehog
- Hedgehog
- Engrailled
- Pax6
7. The rodent expression patterns of the hedgehog gene leads to differences in their tooth morphology
8. Which stage of the flatfish's life is an example of recapitulation?
- Juvenile stage
- Adult stage
9. Which type of fish changes from a bilaterally symmetrical design in childhood to an asymmetrical design in adulthood
- Moray eels
- Flatfish
- Sharks
- Ciclids
10. Genes involved in dorso-ventral formation in vertebrates and arthropods are not homologous
11. Anticlockwise rotation of micromeres in snail embryo leads to which type of shell?