Chapter 31 - Chapter 31 Fungi I. Fungal Characteristics 1....

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Chapter 31 Fungi I. Fungal Characteristics 1. heterotrophs 2. nuclear mitosis : No breakdown of nuclear envelope 3. Cell walls contain chitin 4. dikaryon stage Cells formed from sexual reproduction may exist for a time with two haploid nuclei before they fuse into a single diploid nucleus 5. multicellular or unicellular forms a. multicellular fungi consist of long slender filaments (hyphae), that may pack together to form more complex structures b. unicellular fungi often with a flagella c. fungal hyphae may be septate, or non septate (diagnostic) d. septa = cross walls e. mycelium = mass of fungal hyphae I I. Fungal Reproduction A. Because of the noncellular nature of fungi, each compartment of a hyphae can house more than one nucleus.
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Monokaryotic = single nucleus Dikaryotic = two nuclei Heterokaryotic = nuclei that are genetically distinct Homokaryotic = nuclei that are genetically similar B. Reproduction can be sexual or asexual Spores = the result (n) Generalized life cycle C. Sexual reproduction occurs when hypha of compatible mating types
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Chapter 31 - Chapter 31 Fungi I. Fungal Characteristics 1....

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