Question

Which best summarizes the scientific process that led to our current understanding of DNA?

Each scientist made an important, but unrelated, contribution.
Scientists built on the previous work of other scientists to make new discoveries.
Most of the discoveries were made by chance and did not depend on prior knowledge.
The most important contributions were made within the same time period of the late 1800s.

Answer 1

(translation) B.

Step-by-step explanation:

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Answer 2

Scientists built on the previous work of other scientists to make new discoveries.

Step-by-step explanation:

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