If 5-bromouracil was added to a culture of actively dividing bacterial cells,resulting mutations could eventually become a stable part of the cellular genome.

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5-bromouracil can act as a mutagen by inducing base substitutions during DNA replication. These mutations can be passed on to daughter cells during cell division and become a stable part of the cellular genome. Therefore, adding 5-bromouracil to a culture of actively dividing bacterial cells can result in mutations that become a stable part of the cellular genome.

If 5-Bromouracil Was Added to a Culture of Actively Dividing