Python Challenge 11 011_Neanderthal

This is a Python challenge involving iteration, file handling and calculation. I have provided the worksheet in PowerPoint format so it can be edited. When I use it I replace the placeholder teachers with photos of staff in my school, the students quite enjoy guessing which one will be the most Neanderthal!
The problem to be solved is to count the number of Neanderthal genetic markers in each teachers DNA strand and calculate the percentage of Neanderthal DNA for each. I have also included a generator so that it can be adapted to use with larger groups etc and of course there is a solution provided.
Where a filename ends py the .txt extension should be removed and a dot added to make a .py extension. Filenames that do not end with py should retain their .txt extension as they are data files. The video makes a good starter.

NB: The numbering system does not indicate difficulty or teaching order but simply helps me keep track of resources.