Biology

Question

In one species of shark, having a curved dorsal fin is dominant over a straight dorsal fin. This image represents a gene pool for a population of sharks off the coast of Hawaii. Calculate the allele frequencies, making sure to show your work. Furthermore, discuss whether this population has a high or low genetic variation for the dorsal fin trait. Finally, predict what would happen to the frequencies of D and d in the gene pool if having straight dorsal fins became advantageous.
In one species of shark, having a curved dorsal fin is dominant over a straight dorsal fin. This image represents a gene pool for a population of sharks off the

1 Answer

  • Sharks evolved several million years ago, before dolphins. Sharks adapted to the water with their hydrodynamic bodies. Dolphins evolved long after sharks from land mammals and adapted to water. Dolphins are warm-blooded mamals while Sharks are cold – bodied mammals.

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