Sentence examples for a very puzzling problem from inspiring English sources

The assembly of subunits into complex I has proved to be a very puzzling problem to address, complicated by the size of the enzyme and its dual genomic control.

But he was left with "a really puzzling problem," Mitrovica said.

"The world is a very puzzling place: if you're not willing to be puzzled, you just become a replica of someone else's mind".

And that's a very puzzling number.

Then she gave me a very puzzling instruction: "Get back on the gluten".

The presence of a poorly expressed class Ib enzyme in S. Typhimurium and Enterobacteriaceae in general has been a very puzzling issue since it was first described [32].

Even though he did a best-selling memoir about his roots, he has had a persistent and puzzling problem coming across as rooted.

America faces a puzzling problem, he mused in his speech.

In God's benevolent design, carnivores caused mercifully swift death, but the suffering caused by parasitism was a puzzling problem.

This belief implied a puzzling problem because specific CD8+ T cell responses appear to be strongly associated with different viral set-point levels in patients [3], [37], but the death rate of virus-producing cells is very similar in different patients [14].

Electron or ion irradiation-induced phase change between the amorphous and crystalline state is a long-standing and puzzling problem.