Contoh Perhitungan - Genetika Populasi.docx

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CONTOH PERHITUNGAN - GENETIKA POPULASI Data Perhitungan Rombongan II : 1. Golongan darah A = 6 2. Golongan darah B = 5 3. Golongan darah AB = 2 4. Golongan darah O = 9 Perhitungan : (p+q+r)2 = p2+2pr+q2+2qr+2pq+r2 A

B

AB O

a. Frekuensi fenotipe Rumus = Jumlah individu dalam golongan darah Total keseluruhan golongan darah 6

 Golongan darah A = 22 5

 Golongan darah B = 22

= 0,27 = 0,22

2

 Golongan darah AB = 22 9

 Golongan darah O = 22

= 0,09 = 0,40

b. Frekuensi alel 

Gol darah O = r2 0,40

= r2

√0,40 = r 0,63

= r

 p+q+r

=1

(p + r)2

= (1- q)2

P2 + 2pr + r2

= (1 – q)2

A+O

= (1 - q)2

0,27 + 0,40

= (1 - q)2

√0,67

= 1−q

0,82

=1-q

q

= 1 – 0,82

q

= 0,18

 p+q+r

=1

p + 0,18 + 0,63 = 1 p

= 1 – 0,81

p

= 0,19

c. Frekuensi genotipe  Golongan Darah A: IAIA = p2

= (0,19)2

= 0,0361

IAIo = 2pr = 2 (0,19)(0,63) = 0,2394  Golongan Darah B: IBIB = q2

= (0,18)2

= 0,0324

IBIo = 2qr = 2 (0,18)(0,63) = 0,2268  Golongan Darah O: I0Io = r2

= (0,63)2

= 0,3969

 Golongan Darah AB: IAIB = 2pq = 2(0,19)(0,18)

= 0,0684

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