Transcription and Regulation
The major function of RNA polymerase's sigma factor is

recognition of the translational start sequence
recognition of the translational stop sequence
recognition of the transcriptional stop sequence
recognition of the transcriptional start sequence

ANSWER DOWNLOAD EXAMIANS APP

Transcription and Regulation
Most transcripts of protein coding genes are cleaved

at the 5' end immediately before a poly adenylation signal
at the 3' end just after a poly adenylation signal
at the 3' end just before a poly adenylation signal
at the 5' end immediately after a poly adenylation signal

ANSWER DOWNLOAD EXAMIANS APP