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PKU is a recessive gene disorder. Use a Punnett square to demonstrate the likelihood that a mother and father who both carry the gene would have a child who has the condition.
Ocean Basins
The underwater depressions of the Earth's surface that contain the bulk of the planet's ocean water.
Abyssal Plains
Vast, flat areas of the deep ocean floor, situated at depths between 3,000 and 6,000 meters below sea level.
Seamounts
Underwater mountains formed by volcanic activity, which rise from the ocean floor but do not reach the surface.
Island Chains
Groups of islands formed close to one another, often as a result of volcanic activity along oceanic ridges or subduction zones.
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