Without a partner chromosome with which to compare and correct the spelling of genes, the Y chromosome acquired lots of mistakes, and whole chunks of it were eventually lost. (discovermagazine.com)
Also, when posting, write professionally and check for correct spelling and grammar. (sterlingtalentsolutions.com)
We don't expect every answer to be perfect, but answers with correct spelling, punctuation, and grammar are easier to read. (politics.stackexchange.com)