This is the structure of a gene called CFTR, present in Mouse. The screenshot was taken from a IGC browser.
I need help understanding some fairly trivial questions.
1. I think the vertical bars represent Exons and the rest is intronic region. Correct? 2. The arrow points to the direction of the gene. In this case it's 5'-3'? 3. Why does the starting and ending of the gene have regions of different vertical bar lengths. They seem to be shorter than the rest. Does this signify anything? Please scroll over to the right end to see what I mean. There is a long blue bar but shorter in size.
Thanks for the help.