1
According to 23&me (https://blog.23andme.com/articles/no-im-not-irish) only about 50% of customers with two copies of R160W have red hair although I’m not sure if a reddish cast like Grace with one copy has is included in that. Beowulf with one copy of R160H with only slightly higher penetrance than R160W has a light auburn shade around Fischer-Saller III. Sacha also with one copy for that variant has deep brunette hair that photobleaches to red-brown. A variety of outcomes can happen but the presence of R151C will be more impactful than other variants.
Bookmarks