Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

It had been some time since Jack had seen the old man.Over the phone ,his mother told him,"Mr.Belser died last night ,The funeral is Wednesday."Memories flashed through his mind like an old newsreel as he sat quietly remembering his childhood days. When Jack was very young ,his father died.Mr Belser,who lived in the same neighborhood with them,spent as much time as he could to make sure Jack had a man's influence in his life.He spent a lot of time teachimg Jack he thought what was important in his following life.If Mr.Belser hadn' taught him how to weave,he wouldn't be in this business now.So he promised his mother he would attend Mr.Belser's funeral. "You'd better not drive your car.It's a long way."his mother warned him. Busy as he was,he kept his word.Though tired from the earliest flight,Jack tried his best to help.Mr.Belser's funeral was small because he had no children of his own and most of his s had passed away. The night before he had to return home,Jack and his mother stopped by to see the old house Mr.Belser once lived.Now it belonged to him.He bought the house from one of his s. The house was exactly as he remembered.Every step held memories.Every picture,every piece of furniture... Jadk stopped suddenly. The box on his desk was gone!He once asked the old man what was inside.He just smiled and said it was the most valuable thing to him,though it almost cost nothing to others.He figured that someone from the Belser family had taken it ."I will never know what was so valuable to him."Jack thought disappotntedly. Three days later returning home from work,Jack discovered a small package in his mailbox. The handwriting was difficult to read,but the return address caught his attention."Mr.Harold Belser"it read. Jack couldn't wait to open it .Inside lay the familiar small box.His heart racing,Jack unlocked the box.Inside he found a gold pocket watch with these words engraved:"Jack,Thanks for your time!Harold Belser." "The thing he valued most was my time."Jack held the watch before his chest,tears filling his eyes.
What did Mr.Belser teach Jack when he aws young?

To study the mechanism of centrosome duplication in cycling cells, we established a novel system of multiple centrosome formation in two types of cells: CHO cells treated with RO3306, a Cyclin-dependent kinase 1 (Cdk1) inhibitor and DT40 cells, in which Cdks were knocked out by chemical genetics. Cdk1-inactivated cells initiated DNA replication and centrosome duplication at the onset of S phase. They became arrested at the end of G2, but the centrosome cycle continued to produce supernumerary centrioles/centrosomes without DNA endoreplication in those cells. Centrosomes were amplified in a highly synchronous and reproducible manner: all of them were located next to the nucleus and spread widely apart from each other with several m in distance. Double knockout of Cdk1 and Cdk2 caused cell cycle arrest at G1/S and centrosomes were no longer duplicated. However, cells continued to grow and increased their volume over 10-fold during 48 hr of culture. Centrosome components, including -tubulin and Cep135, were synthesized and accumulated during the arrest, allowing rapid centrosome multiplication upon recovery from the cell cycle arrest or expression of exogenous Plk4 in G1/S cells. Thus centrosome amplification results from the discoordination of the centrosome cycle from the progression of other cell cycle events, which is controlled by different levels of Cdk activities.
Where in the cell do we find the protein Cep135?

Marek was a farmer who lived in a village far away. One day he became very ill, and everyone thought he would die. They sent for a doctor, who arrived two days later and examined the sick man. The doctor asked for a pen and some paper to write down the name of the medicine. But there was no pen or paper in the village, because no one could read or write. The doctor picked up a piece of burnt wood from the fire. Using the wood, he wrote the name of the medicine on the door of the house. "Get this medicine for him," he said,"and he will soon get better." Marek's family and friends did not know what to do. They could not read the strange writing. Then the village baker had an idea. He took off the door of the house, put it on his cart and drove to the nearest town. He bought the medicine, and Marek was soon well again. He would not let anyone wash the magic words away from the door.

On what did the doctor write the name of the medicine?