Anonymous2: Mito and Kushina didn't have whiskermarks.
The whiskermarks are the symbol of having being influenced by the Kyubi's chakra on an "internal" level, which is why Naruto has them (he was concieved inside Kushina while she still Kurama in her, so the fox's chakra mixed with his own for 8 months) as well the brothers Ginkaku and Kinkaku (who ate some of the fox's flesh, having it mix with themselves in a similar way to how Naruto did).
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The whiskermarks are the symbol of having being influenced by the Kyubi's chakra on an "internal" level, which is why Naruto has them (he was concieved inside Kushina while she still Kurama in her, so the fox's chakra mixed with his own for 8 months) as well the brothers Ginkaku and Kinkaku (who ate some of the fox's flesh, having it mix with themselves in a similar way to how Naruto did).