Table: n_african_ydna
Columns: region
population
country
language
n
total
r1b1c_r_v88
r1b1a2_r_m269
r1b1c_r_v88_2
r1b1c4_r_v69

Question: What percentage is listed in column r1b1a2 (r-m269) for the 77.8% r1b1c (r-v88)?
SQL: SELECT "r1b1a2_r_m269" FROM n_african_ydna WHERE "r1b1c_r_v88" = '77.8%'

Question: What languages are spoken in Niger with r1b1c (r-v88) of 0.0%?
SQL: SELECT "language" FROM n_african_ydna WHERE "country" = 'Niger' AND "r1b1c_r_v88" = '0.0%'

Question: What percentage is listed in column r1b1c (r-v88) for the 4.5% total percentage?
SQL: SELECT "r1b1c_r_v88" FROM n_african_ydna WHERE "total" = '4.5%'

Question: How many n are listed for 0.6% r1b1a2 (r-m269)?
SQL: SELECT COUNT("n") FROM n_african_ydna WHERE "r1b1a2_r_m269" = '0.6%'

Question: How many n are listed for berbers from siwa?
SQL: SELECT COUNT("n") FROM n_african_ydna WHERE "population" = 'Berbers from Siwa'

Question: What is the largest n value for 55.6% r1b1c4 (r-v69)?
SQL: SELECT MAX("n") FROM n_african_ydna WHERE "r1b1c4_r_v69" = '55.6%'