What percentage of a DNA molecule comes from an older generation after replication?
A)25%
B)50%
C)75%
D)100%

B. 50%

Explanation:

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science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.