a
Scientists gained more knowledge about DNA as new evidence became available.
A timeline of important discoveries about DNA is shown below. These discoveries have contributed to our current knowledge about DNA.
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Which statement best summarizes the development of knowledge about DNA over time?
a
Scientists gained more knowledge about DNA as new evidence became available.
b
Past knowledge about DNA was discarded as each new discovery was made.
c
Ideas about DNA have remained unchanged over time.
d
Changes in ideas about DNA are based on opinion.
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