How much do you know about chromosomes? Many people make the mistake of thinking that chromosomes are fixed and unchanging, but there are many different exceptions to the norms. For instance, did you know that one in less than every thousand people are born with an XXY chromosome configuration? Test what you know, and perhaps learn something new.
Unless otherwise stated, questions pertain to human chromosomes.
Start by naming any country that France borders. Then name any country that borders any of those countries. Then keep going until there are no more countries left to name.