Sage Mode - A clan-specific Jutsu?

[MLX]

I think the 2 sages toads said he wasn't skilled enough to get perfect sage mode.

 

[Darth Wignus]

You had me at his descends. Then you lost me with that Sage mode bull. Kabuto only got sage mode through genetic manipulation. Naruto only got it cause he was Jiraiya's student. We've never seen "slug" sage mode.

 

[Your Creepy Stalker]

No proof Kabuto was decended from the sage. And, Jiraiya wasn't an uzumaki because his hair was white, Kabuto knew jiraiya and stated that all uzumaki's had red hair.