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Messenger ribonucleic acid (RNA) from log and sporulation stages of growth were transcribed mainly from the heavy strand of the complementary strands of Bacillus subtilis deoxyribonucleic acid (DNA). During sporulation a slight transcription shift from heavy to light DNA strands was observed. RNA-DNA hybrid competition experiments revealed that this shift was due to sporulation-specific transcription from light-DNA strands.
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Yamakawa et al. (1971) studied this question.
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