Were Wolverine's claws formed as part of forming his Adamantium coated skeleton?

Question

Were Wolverine's claws formed as part of forming his Adamantium coated skeleton?

Or were they part of his mutation?

Answer 1

No, it was established in Wolverine volume 2 #75 that he has had bone claws all along as part of his mutation. They were always thought to be part of the adamantium coating process. This was disproven after Magneto ripped all the adamantium out of his body (X-Men volume 2 #25, 1994), leaving him with bone claws.

His origin mini-series, titled Origin, depicted him with bone claws as well.

Answer 2

http://en.wikipedia.org/wiki/Wolverine_(comics)

When Magneto stripped the adamantium out of Wolverine it was revealed that he had bone claws underneath (as depicted in X-Men Origins: Wolverine). However that was not always the case:

Wein originally intended the claws to be retractable and part of Wolverine's gloves, and both gloves and claws would be made of adamantium.[17] Chris Claremont eventually revealed that they were an integrated part of Wolverine's anatomy in X-Men #98 (April 1976).

During the 1990s, the character was revealed to have bone claws.

Comic Book Urban Legends Revealed #96

Leading to the time when Wolverine had only bone claws, which actually lasted for over FIVE YEARS worth of Wolverine comics!!!

So while he was not originally intended to have bone claws, that is how his storyline eventually evolved.

Answer 3

The claws are part of his base mutation, as was seen when the Adamantium was ripped from his skeleton by Magneto.

From the Marvel page on him:

The claws are made of bone, unlike the claws of normal mammals which are made of keratin, and were originally believed to be bionic adamantium implants.

(Emphasis mine.)

Also, see the info on the Weapon X program:

Logan's bones, including his claws, were bonded with the indestructible metal, known as Adamantium, making them unbreakable, and was brain washed.
...
Logan's memories of much of his past would remain clouded, as a result of the Weapon X experiment and additional false memories during the procedure as well. Logan even believed that Weapon X surgically implanted his claws.

The last part being a sneaky way to Retcon them; since, up until then, canon was that they WERE implanted.