Sentence examples for challenging question to answer from inspiring English sources

How the WRN-deficient progeroid stem cells become depleted remains a challenging question to answer, mainly because adult stem cells from WS are difficult to acquire.

Whether families of fetal growth restricted offspring that result in perinatal death are different from families of survivors remains a challenging question to answer.

People still ask me this today and it continues to be a challenging question to answer.

Roseman: So, it's a challenging question to answer, so the short answer is no.

It's a challenging question to answer because each child and family is different.

If you're going to do your job in Japan, how can you ask challenging questions to get the right answers without making people feel threatened?

Participants were required to answer the profile and challenge questions to authenticate their online examinations.

Packed with sharp-witted phrases and challenging questions, you must answer a series of multiple-choice questions on a variety of subject categories all before time runs out.

UNICEF's Executive Director Carol Bellamy, striding up and down the aisles with microphone in hand, moving from one eager student to the next,  transformed a packed, formal UN conference room into a buzz of challenging questions and answers about the facts of girls' education in countries around the world.

Mitchell emphasizes "that there are still challenging problems to solve and difficult questions to answer" in the domain of the DS buckling (Mitchell 2008).

Functional genomics brings together high-throughput genetics with multiparallel analyses of gene transcripts, proteins, and metabolites to answer challenging questions posed by all completed genome-sequencing projects: i.e., what is the biological function of each and every gene?