Difficulty: Easy
Correct Answer: Black bread molds
Explanation:
Introduction / Context:
Recognizing the sexual spores characteristic of major fungal groups aids identification and understanding of life cycles. Zygospores are thick-walled resting sexual spores formed by certain molds traditionally placed in Zygomycetes.
Given Data / Assumptions:
Concept / Approach:
In black bread molds, compatible hyphae form gametangia that fuse (plasmogamy and karyogamy), producing a zygospore that can survive adverse conditions and later germinate to form sporangia. This contrasts with basidiospores (Basidiomycota) and ascospores (Ascomycota).
Step-by-Step Solution:
Verification / Alternative check:
Lab manuals illustrate zygosporangia and zygospores in Rhizopus cultures grown on carbohydrate-rich media.
Why Other Options Are Wrong:
Common Pitfalls:
Mixing ecological terms with reproductive terminology; ensure the match is spore type to group.
Final Answer:
Black bread molds
Discussion & Comments