When reading questions, be careful not to read too quickly. In this case, fast but inefficient reading will lead us to assume that it is asking about ...
Primase enzyme catalyze the formation of an rna primer
The base pairing for this is usually c-g, a-u, so your answer would be UAC GGA UGC ACC CUG
It is definitely not a primary source: this would be a book itself.
Now, is it a tertiary source? I don't think so: the author of the review should have read the book and should only be referring to this book in the review.
I think it's a secondary source.
