Transcription - How to do it ?

Question

Transcribe the following DNA strand into two single stranded pieces of RNA:

 

A A T G C C G T A T A G C T C A T G C T A

T T A C G G C A T A T C G A G T A C G A T

 

please explain how to do this 

Answer 1

Transcription of DNA into mRNA involves only one change: All T's become U's. This is because RNA uses the base Uracil (U) rather than Thymine (T), although their structures are very similar. 

 

One strand of DNA read from left to right (5'- to 3'-): 

A A T G C C G T A T A G C T C A T G C T A

The same strand read from right to left (3'- to 5'-): 

T T A C G G C A T A T C G A G T A C G A T

 

One RNA strand produced will read: 

A A U G C C G U A U A G C U C A U G C U A

The 2nd RNA strand produced will read: 

U U A C G G C A U A U C G A G U A C G A U

 

One DNA strand becomes 2 single RNA strands in the transcription process.