<p><sub>Answer given by @Ero Sɘnnin in the comments.</sub></p>

<p>Not every Uchiha is able to awaken the Rinnegan. Nor can any common Senju.</p>

<p>It is not the Uchiha:Senju DNA ratio that governs the Rinnegan's existence. It is the Asura and Indra chakra mixing. </p>

<p>Also, I think the chakra ratio doesn't matter as we see in Madara's case. Although more chakra can maybe speedup the process of Rinnegan formation.</p>

<p>Related: <a href="https://anime.stackexchange.com/questions/21537/what-if-hashirama-had-implanted-madaras-cells-into-his-body">What if Hashirama had implanted Madara&#39;s cells into his body?</a></p>

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2015-04-01T10:29:29.013Z
He didn't post it as an answer in 2 days, posting it as your own and giving attribution is fair play. +1.
Madara's Ghost
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2015-04-01T08:38:39.017Z
2015-05-31T09:28:20.703Z
2017-04-13T12:54:48.523Z
Alfro
<p>It is never stated that random Uchiha or Senju awaken the Rinnegan via the reincarnation process, but rather, the Indra and Ashura reincarnates.</p>
<p>I highly doubt the portion of chakra you have between the two matters, as Madara is 100% of an Uchiha and merely <strong>biting</strong> a Senju still got him a Rinnegan, but awakened it when he was very old. It is not the amount of chakra, but rather, the fact that you possess Indra and Ashuras chakra.</p>
<p>It is safe to assume, as Alfro said, if you have more chakra of a Senju, the process will speed up.</p>

CC BY-SA 4.0
2021-03-31T19:58:15.340Z
2021-03-31T19:58:15.340Z
ᴅᴀɴɪᴇʟッ
<p>Is it possible for a Senju to awaken a Rinnegan? Suppose that a Senju got an EMS from an Uchiha and implanted it, would he also awaken the Rinnegan just like an Uchiha did, given that the ratio of Uchiha and Senju DNA is different than if an Uchiha awakens it?</p>

CC BY-SA 3.0
2015-03-30T09:51:18.173Z
Just any Uchiha cant awaken the Rinnegan. Nor can a common Senju. It is not the Uchiha:Senju DNA ratio that governs the Rinnegan's existence. It is the Asura and Indra chakra mixing. Also, IMO the chakra ratios doesnt matter as we see in Madara's case. Although more chakra can maybe speedup the process of Rinnegan formation.
Ero Sɘnnin
CC BY-SA 3.0
2015-04-08T10:38:57.087Z
@EroSɘnnin Do you think Madara was able to awaken the Rinnegan because he was the reincarnation of Asura ?
Kaguya Otsutsuki
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2015-04-08T10:44:25.883Z
@KaguyaOtsutsuki Madara was Indra's reincarnation. And to your question, partially yeah. But the main reason was because he obtained Asura's chakra.
Ero Sɘnnin
CC BY-SA 3.0
2015-04-08T11:25:12.190Z
@EroSɘnnin Thanks for the correction. Even Obito had Asura's chakra through first hokage's cells. Do you think Obito could've awakened Rinnegan if he had Eternal Mangekyo Sharingan ?
Kaguya Otsutsuki
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2015-04-08T11:29:55.240Z
@KaguyaOtsutsuki So did Danzo. I'm not entirely sure about the concept of an outsider (non-reincarnation) getting a Rinnegan. Related: https://anime.stackexchange.com/questions/18616/is-it-possible-to-get-the-rinnegan-by-injecting-senju-and-uchiha-dna-into-yourse?rq=1
Ero Sɘnnin
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2015-04-08T11:44:31.273Z
@EroSɘnnin I didn't see your related reference, now its clear. cheers
Kaguya Otsutsuki
<naruto>
Does the Uchiha:Senju DNA ratio matter in awakening the Rinnegan?
# Does the Uchiha:Senju DNA ratio matter in awakening the Rinnegan?
Posted by: username_0 on 2015-03-30
Is it possible for a Senju to awaken a Rinnegan? Suppose that a Senju got an EMS from an Uchiha and implanted it, would he also awaken the Rinnegan just like an Uchiha did, given that the ratio of Uchiha and Senju DNA is different than if an Uchiha awakens it?
**Tags:** naruto
> **Comments:**
> **username_1**: Just any Uchiha cant awaken the Rinnegan. Nor can a common Senju. It is not the Uchiha:Senju DNA ratio that governs the Rinnegan's existence. It is the Asura and Indra chakra mixing. Also, IMO the chakra ratios doesnt matter as we see in Madara's case. Although more chakra can maybe speedup the process of Rinnegan formation.  
> **username_2**: @EroSɘnnin Do you think Madara was able to awaken the Rinnegan because he was the reincarnation of Asura ?  
> **username_1**: @KaguyaOtsutsuki Madara was Indra's reincarnation. And to your question, partially yeah. But the main reason was because he obtained Asura's chakra.  
> **username_2**: @EroSɘnnin Thanks for the correction. Even Obito had Asura's chakra through first hokage's cells. Do you think Obito could've awakened Rinnegan if he had Eternal Mangekyo Sharingan ?  
> **username_1**: @KaguyaOtsutsuki So did Danzo. I'm not entirely sure about the concept of an outsider (non-reincarnation) getting a Rinnegan. Related: https://anime.stackexchange.com/questions/18616/is-it-possible-to-get-the-rinnegan-by-injecting-senju-and-uchiha-dna-into-yourse?rq=1  
> **username_2**: @EroSɘnnin I didn't see your related reference, now its clear. cheers  
---
## 2 answers
### Answer by username_3 on 2015-04-01. Score: 5 | Accepted answer
Answer given by @Ero Sɘnnin in the comments.

Not every Uchiha is able to awaken the Rinnegan. Nor can any common Senju.

It is not the Uchiha:Senju DNA ratio that governs the Rinnegan's existence. It is the Asura and Indra chakra mixing.

Also, I think the chakra ratio doesn't matter as we see in Madara's case. Although more chakra can maybe speedup the process of Rinnegan formation.

Related: [What if Hashirama had implanted Madara's cells into his body?](https://anime.stackexchange.com/questions/21537/what-if-hashirama-had-implanted-madaras-cells-into-his-body)
> **Comments:**
> **username_4** (2015-04-01): He didn't post it as an answer in 2 days, posting it as your own and giving attribution is fair play. +1.  
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### Answer by username_5 on 2021-03-31. Score: 0
It is never stated that random Uchiha or Senju awaken the Rinnegan via the reincarnation process, but rather, the Indra and Ashura reincarnates.

I highly doubt the portion of chakra you have between the two matters, as Madara is 100% of an Uchiha and merely **biting** a Senju still got him a Rinnegan, but awakened it when he was very old. It is not the amount of chakra, but rather, the fact that you possess Indra and Ashuras chakra.

It is safe to assume, as Alfro said, if you have more chakra of a Senju, the process will speed up.
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