Question

Where does rna polymerase begin transcribing a gene into mrna?

Answer 1

Transcription begins after a certain nucleotide sequence called the "promoter". The sequence consists of the following: 
1) The AUG start codon is identified 
2) Transfer RNA translates the message to the RNA polymerase 
3) Ribosomes direct it to the correct segment of the DNA molecule

REMEMBER: 
- Nucleotide synthesis = promoter 
- Synthesis initiates at one end of the chromosome