Question Detail
Question
In the sexual reproduction of zygomycetes, the fusion of gametangia from two opposing mating strains leads to:
Correct Answer
Option B is the correct answer.
Detailed Explanation
When two opposing mating strains (type + and type –) are in close proximity, gametangia from the hyphae fuse, leading to karyogamy (nuclear fusion). The developing diploid zygospores form with thick protective coats.
Hint
The sexual cycle in conjugated fungi results in a dormant, thick-walled structure containing the fused nuclei.