In the storyline of The Young and the Restless, Claire is not biologically related to Martin. Initially, it was believed that Cole was Claire’s biological father, but DNA results later revealed that he was not. Subsequently, it was uncovered that Claire is the biological daughter of Amy and Martin. citeturn0search3 Despite not sharing a biological connection, Claire has developed a close relationship with Martin, referring to him as “dad.”
For a more detailed explanation, you can watch the following video:
videoBig Shocker Y&R Spoilers Victoria admits Cole is not Claire’s fatherturn0search0