Pertanyaan
17. Kacang berkulit biji keriput homorigot resesif disilangkan dengan kacang berkulit licin heterozigot dominan. Sifat kulit keriput resesif terhadap sifat kulit licin. Keturunan yang dihasilkan memiliki sifat __ A. Semuanya berkulit licin heterozigot B. Semuanya berkulit keriput homozigot C. 50% berkulit licin heterozigot dan 50% berkulit keriput homozigot D 50% berkulit licin homozigot dan 50% berkulit keriput homozigot
Jawaban
C. 50% berkulit licin heterozigot dan 50% berkulit keriput homozigot
Penjelasan
This question is related to Mendelian genetics, specifically a cross involving single-trait inheritance. Here, we have a cross between a wrinkled-seed pea plant (homozygous recessive) and a smooth-seed pea plant (heterozygous dominant). The wrinkled seed trait (rr) is recessive, and the smooth seed trait (R_) is dominant. When a homozygous recessive individual (rr) is crossed with a heterozygous dominant individual (Rr), the offspring genotypes will be 50% heterozygous dominant (Rr) and 50% homozygous recessive (rr). The phenotypes will be 50% with the dominant trait (smooth seed) and 50% with the recessive trait (wrinkled seed).
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