No, not in how you are describing 'transforming'. If (Mark) says so, give the Scripture and explain.
Jesus was/is the God/Man. 100% God and 100% Man. From the day He was born.
(Is. 7:14) "Therefore the Lord himself shall give you a sign; Beholld, a virgin shall conceive, and bear a son, and shall call his name Immanuel."
(Matt. 1:22-23) "Now all this was done that it might be fulfilled which was spoken of the Lord by the prophet, saying, Behold, a virgin shall be with child, and shall bring forth a son, and they shall call his name Emmanuel, which being intererpreted is, God with us."
Quantrill