The phrase "at various often" is not correct and does not make sense in written English.
It seems to be an attempt to combine "at various" with "often," but they do not fit together logically.
Example: "The events occur at various times throughout the year."
Alternatives: "at different times" or "frequently at various intervals."
Compared to DNA polymerases in the other families, the Y-family members have more flexible and solvent-accessible active sites that likely allow for the accommodation of various, often bulky, lesions at the expense of the ability to strongly select for correct nucleotides.
It's worth noting that mentorship happens at various stages, often in high school or earlier.
To confirm that no one is cheating, Cantrell hides 10 books at various points, often ones with titles appropriate to a given section of the course: "Death Walks the Woods," "Heart of Darkness," "A Time to Die".
Keynes was also (at various times, often simultaneously) a civil servant, a collector of paintings and books, a speculator, a farmer, the begetter of British policy towards the arts (he created the Arts Council), and editor and publisher – and of course, a thinker of great originality.
If you are very interested in anime/manga, many books on it are sold at various prices, often with entire chapters on eyes.
While ecosystem services provide benefits at various spatial scales, often the decision to conserve an ecosystem lies with the local people.
Through Heidi, I'd gotten to know her a little; we'd spent time together at various soirees that often seemed gleefully orchestrated by Wendy, even as she proclaimed shyness.
Additionally, in these studies beta-blockade was initiated at various time points often at the time of surgery or following the procedure.
Visit often at various times, including nights, weekends and holidays, when the staff members on duty may not be the most experienced.
Gender discrimination in hiring at various academic levels is often put forward as a major reason, but recent studies have sparked controversy by suggesting that gender bias in male-dominated fields, in fact, favors women.
