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Table 12 Genotypic frequencies and the total number of students of different ethnic group from primary schools of Adama town, Ethiopia

From: Prevalence and genotypic frequency of color vision defects among primary schoolchildren in Adama Town, Eastern Ethiopia

Ethnic group

Genotype

Frequency (From Table 9)

Total number of individuals

%

Oromo

AA (p2)

0.78 × 0.78 =  ~ 0.61

0.61 × total population (282) = 172.07 =  ~ 172children

61

Aa (2pq)

2 × 0.78 × 0.22 =  ~ 0.34

0.34 × total population (282) = 95.88 =  ~ 96 children

34

aa (q2)

0.22 × 0.22 =  ~ 0.05

0.05 × total population (282) = 14.1 =  ~ 14 children

5

Total

1

324

100

Amhara

AA (p2)

0.73 × 0.73 =  ~ 0.533

0.533 × total population (282) = 150.2 =  ~ 150

53.3

Aa (2pq)

2 × 0.73 × 0.27 = 0.3942

0.394 × total population (282) = 111.16 =  ~ 111 students

39.4

aa (q2)

0.27 × 0.27 =  ~ 0.073

0.073 × total population (282) = 20.59 =  ~ 21 students

7.3

Total

1

282

100

Gurage

AA (p2)

0.86 × 0.86 =  ~ 0.74

0.74 × total population (282) = 208.68 =  ~ 209 students

74

Aa (2pq)

2 × 0.86 × 0.14 = 0.2408

0.24 × total population (282) = 67.68 =  ~ 68 students

24.1

aa (q2)

0.14 × 0.14 = 0.019

0.019 × total population (282) = 5.3 =  ~ 5 students

1.9

Total

1

282

100

 

Sum total

1

846

100