Some of the events that occur during transcription are listed.
1) Bonds break between complementary bases.
2) Bonds form between complementary bases.
3) Sugar-phosphate bonds form.
4) Free nucleotides pair with complementary nucleotides.
Before the mRNA molecule leaves the nucleus, which events occur twice during transcription?
1 )
1, 2 and 3
2 )
1, 3 and 4
3 )
2, 3 and 4
1 and 2 only
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