Many have heard the stories told to children and adults alike saying that the apple (or some other fruit in existence) was the forbidden fruit of the tree of knowledge of good and evil.
This is simply not true. The scriptures only mention one tree of knowledge of good and and evil.
 And the LORD God planted a garden eastward in Eden; and there he put the man whom he had formed.
 And out of the ground made the LORD God to grow every tree that is pleasant to the sight, and good for food; the tree of life also in the midst of the garden, and the tree of knowledge of good and evil.
 And a river went out of Eden to water the garden; and from thence it was parted, and became into four heads.
 The name of the first is Pison: that is it which compasseth the whole land of Havilah, where there is gold;
 And the gold of that land is good: there is bdellium and the onyx stone.
 And the name of the second river is Gihon: the same is it that compasseth the whole land of Ethiopia.
 And the name of the third river is Hiddekel: that is it which goeth toward the east of Assyria. And the fourth river is Euphrates.
 And the LORD God took the man, and put him into the garden of Eden to dress it and to keep it.
 And the LORD God commanded the man, saying, Of every tree of the garden thou mayest freely eat:
 But of the tree of the knowledge of good and evil, thou shalt not eat of it: for in the day that thou eatest thereof thou shalt surely die.
The tree did not survive either. It was destroyed. Stop teaching the myth that the tree of knowledge of good and evil was an apple. The fruit of the tree of knowledge of good and evil was unique and not that of any tree in existence.