Tanaman kacang ercis batang tinggi bunga merah disilangkan dengan tanaman kacang ercis batang pendek bunga putih, dimana sifat tinggi merah dominan terhadap pendek putih. Tentukan : a. Buatlah persilangan F1nya b. Jika F1 disilangkan dengan sesamanya, buatlah tabel persilangan F2. c. Tentukan perbandingan genotip dan fenotip pada F2nya.

<p>Kacang ercis batang tinggi merah dominan. Maka, genotipnya :</p><p>batang tinggi &nbsp;= T&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; merah = M</p><p>batang pendek = t&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; putih = m</p><p><i><strong><u>Keturunan F1 </u></strong></i>yaitu TtMm (tinggi merah)</p><p>&nbsp;</p><p><i><strong><u>Keturunan F2 (persilangan F1 dengan sesama)</u></strong></i></p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Parental =&nbsp;&nbsp;&nbsp;tinggi merah &nbsp; ×&nbsp;&nbsp;&nbsp;tinggi merah</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Genotip = &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TtMm &nbsp; &nbsp;&nbsp;&nbsp; &nbsp; &nbsp; × &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;TtMm</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Gamet &nbsp; = TM, Tm, tM, tm &nbsp;× &nbsp;TM, Tm, tM, tm</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Buat tabel supaya mudah, diperoleh :</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; **(ada pada gambar yang terlampir)</p><p>&nbsp;</p><p>TTMM = 1 (tinggi merah)</p><p>TTMm = 2 (tinggi merah)</p><p>TtMM = 2 (tinggi merah)</p><p>TtMm = 4 (tinggi merah)</p><p>TTmm = 1 (tinggi putih)</p><p>Ttmm = 2 (tinggi putih)</p><p>ttMM = 1 (pendek merah)</p><p>ttMm = 2 (pendek merah)</p><p>ttmm = 1 (pendek putih)</p><p>&nbsp;</p><p>a. Persilangan F1 = TTMM × ttmm</p><p>b. (ada pada gambar yang terlampir)</p><p>c. Perbandingan Genotip</p><p>&nbsp; &nbsp; &nbsp; &nbsp;TTMM : TTMm : TtMM : TtMm : TTmm : Ttmm : ttMM : ttMm : ttmm</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1 &nbsp; &nbsp; : &nbsp; &nbsp; &nbsp; 2 &nbsp; &nbsp; &nbsp;: &nbsp; &nbsp; &nbsp;2 &nbsp; &nbsp; : &nbsp; &nbsp; &nbsp;4 &nbsp; &nbsp; &nbsp;: &nbsp; &nbsp; &nbsp; &nbsp;1 &nbsp; &nbsp; : &nbsp; &nbsp; &nbsp; 2 &nbsp; &nbsp; : &nbsp; &nbsp; &nbsp;1 &nbsp; &nbsp;: &nbsp; &nbsp; &nbsp;2 &nbsp; &nbsp;: &nbsp; &nbsp; 1 &nbsp;</p><p>&nbsp; &nbsp; Perbandingan Fenotip&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; tinggi merah : tinggi putih : pendek merah : pendek putih</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;9 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; : &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1</p>