All of 23andMe's independent directors have resigned from its board in a rare move that marks the latest challenge for the genetic-testing company.

Board memebers quit as founder Anne Wojcicki works to come up with an acceptable financial offer to purchase its remaining shares and take the company private.

(Bloomberg) -- 23andMe Holding Co. co-founder and Chief Executive Officer Anne Wojcicki told employees that she remains committed to taking the genetic testing company private following the resignation of its independent board members.