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frosja888 [35]
3 years ago
5

What genetic adaptation do the sea nomads have that affect their ability to dive ?

Biology
1 answer:
Black_prince [1.1K]3 years ago
3 0

Sea nomads have several genetic adaptations that positively affect their ability to dive.

<u>Explanation:</u><u> </u>

Bajau people who are deep sea divers found in parts of south east Asia are called sea nomads. They depend on the sea for a living and have been into diving before man generations. Some special genetic and physiological adaptations have helped sea nomads in diving.

Studies reveal that the Bajau people have an increased spleen size which means that they have  a large reservoir for oxygenated RBCs. This variation has occurred as a result of natural selection  on genetic variants in the PDE10A gene in sea nomads.

BDKRB2 is the gene affecting the diving reflex of humans. Studies have found out that there is a strong selection on the BDKRB2 gene in the Bajau people.

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