Add punctuation: So far it has been mainly focusing on repairing genskador in bone marrow cells
A: So far it has been mainly focusing on repairing genskador in bone marrow cells.

Add punctuation: Loyds most famous puzzle was the 15 Puzzle which he produced in 1878 Loyd wrote about the puzzle in Sam Loyds Cyclopaedia of 5000 Puzzles Tricks and Conundrums which was published in 1914 after his death by his son also called Sam Loyd
A: Loyd's most famous puzzle was the 15 Puzzle which he produced in 1878. Loyd wrote about the puzzle in Sam Loyd's Cyclopaedia of 5000 Puzzles, Tricks and Conundrums which was published in 1914 after his death by his son (also called Sam Loyd):

Add punctuation: How important is the timely repair of apartments
A:
How important is the timely repair of apartments?