Thursday, February 19, 2015

CONTOH PERSILANGAN DIHIBRID


·         Disilangkan kelinci berbulu hitam berekor pendek dengan kelinci berbulu putih berekor panjang. Keturunan pertama semua berbulu hitam berekor panjang. Tuliskan diagram persilangannya dan bagaimanakan rasio fenotip pada F2?


Parental (P)                        HHpp                    ><                           hhPP
                                       Hitam Pendek                                  Putih Panjang

Gamet (G)                          H                                                             h
                                             p                                                             P

Filial (F1)                                                         HhPp

P2                                           HhPp                     ><                           HhPp
                                       Hitam Panjang                                 Hitam Panjang

Gamet (G)                             H                                                             H
                                                h                                                             h
                                                P                                                             P
                                                p                                                             p

F2                                                           HP          hP           Hp          hp
                                                HP        HHPP    HhPP     HHPp     HhPp
                                                hP        HhPP     hhPP      HhPp       hhPp
                                                Hp        HHPp    HhPp     HHpp     Hhpp 
                                                Hp        HhPp     hhPp      Hhpp      hhpp


Perbandingan Fenotip= Hitam Panjang     :     Hitam Pendek     :     Putih Panjang     :     Putih Pendek

                                            9                      :                 3              :                3              :               1

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