÷ÈÓ°Ö±²¥

Describe the structure of the bacterial RNA polymerase holoenzyme.

What are the two basic types of terminators found in bacterial cells? Describe the structure of each type.

The following diagram represents a transcription unit in a hypothetical DNA molecule. $$\begin{array}{l} \text { 5' } \ldots \text { TTGACA } \ldots \text { TATAAT } \ldots 3^{\prime} \\\ \text { 3' } \ldots \text { AACTGT } \ldots \text { ATATTA } \ldots 5^{\prime} \end{array}$$ a. On the basis of the information given, is this DNA from a bacterium or from a eukaryotic organism? b. If this DNA molecule is transcribed, which strand will be the template strand and which will be the nontemplate strand? c. Where, approximately, will the transcription start site be?