In a mutant Jimson weed (Datura stramonicum), chromosome B is present in three copies whereas all other chromosomes are in the disomic (diploid) state. Jimson weed pollen grains do not tolerate multiple chromosomes and are incapable of fertilization. However, the ovum is capable of fertilization in the trisomic state. If you self-fertilized a trisomic Jimson weed plant, what zygotes would be formed? Tell which zygotes are diploid and which are trisomic. Assume that only the univalent mode occurs during meiosis. Use a punnet square for your answer. Place your table in your blue book.
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Question: In a mutant Jimson weed (Datura stramonicum), chromosome B is present in three copies whereas all…
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