Greetings again patience,
Mary was his mother, and like begets like. God as his father did not eliminate Mary's contribution to the conception and birth of Jesus. Jesus was a descendant of Adam after Adam and Eve had sinned, but he was destined to be the seed of the woman who would overcome all aspects of sin introduced by the initial reasoning and words of the serpent
Genesis 3:15. Jesus had sin nature but never sinned
Romans 8:3,
Hebrews 2:14, he overcame the lusts of the flesh. Sin occurs when the lusts are conceived, not when they are rejected
James 1:14-15. Jesus overcame the lust for food by his previous meditation on the word of God in the first temptation in the wilderness.
Kind regards
Trevor