Figure 24.14 Which of the following statements is true?

1. A dikaryotic ascus that forms in the ascocarp undergoes karyogamy, meiosis, and mitosis to form eight ascospores.
2. A diploid ascus that forms in the ascocarp undergoes karyogamy, meiosis, and mitosis to form eight ascospores.
3. A haploid zygote that forms in the ascocarp undergoes karyogamy, meiosis, and mitosis to form eight ascospores.
4. A dikaryotic ascus that forms in the ascocarp undergoes plasmogamy, meiosis, and mitosis to form eight ascospores.

Figure 24.17 Which of the following statements is true?

1. A basidium is the fruiting body of a mushroom-producing fungus, and it forms four basidiocarps.
2. The result of the plasmogamy step is four basidiospores.
3. Karyogamy results directly in the formation of mycelia.
4. A basidiocarp is the fruiting body of a mushroom-producing fungus.

Figure 24.21 If symbiotic fungi are absent from the soil, what impact do you think this would have on plant growth?