The number _____ and _____ sign are assigned to the first nucleotide of a transcriptional unit.

Question

a. 0, positive

b. 1, negative

c. 1, positive

d. 0, no sign

No idea what the answer might be.

Since this is not my area of expertise, I searched Google under the key words ""first nucleotide" number sign" to get these possible sources:

http://www.hgvs.org/mutnomen/recs.html
http://www.hgvs.org/mutnomen/recs-DNA.html
(Broken Link Removed)
http://www.chem.qmul.ac.uk/iupac/misc/pnuc1.html

In the future, doing similar searches can help to get your answers more quickly.

I hope this helps. Thanks for asking.