Best Answer: Transcription. DNA---Transcription---mRNA---Translatio... In transcription DNA is unzipped and the enzyme RNA polymerase runs along the template strand of the DNA. The template strand of DNA can be identified by finding the nucleotide sequence T A C at the 3â end (you can see this on your template strand).RNA, or messenger RNA, is generated by reading a strand of DNA. RNA polymerase (an enzyme that specifically makes mRNA) moves along the strand of DNA and joins complementary strands (in RNA, the complement to adenine is uracil instead of thymine). mRNA is produced only for the gene that is being read at that time.
Anxiety and the Brain: An Introduction. It should come as little surprise that your brain is the source of your anxiety. Not only does anxiety manifest itself in thoughts â it also affects your brain chemistry in a way that can alter future thoughts and affect the way your entire body operates.
1 These types of learned associations happen every day, and can cause you to feel fear without necessarily knowing why.  On-Edge Feeling Whether or not anxiety directly creates that feeling of being afraid and on edge isn't clear. But there is some evidence that your mind adapts to the way you feel. So when you have anxiety, and your body starts reacting like you're experiencing a fear response, then your mind may also adapt to that feeling and start to feel fearful as a result of your anxiety symptoms.