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/ˈæskəs/ · noun
(mycology) A sac-shaped cell present in ascomycete fungi; it is a reproductive cell in which meiosis and an additional cell division produce eight spores..
The one important character which distinguishes the Ascomycetes from all other fungi is the ascus (plural, asci). This is a sac-like structure in which ascospores are formed following karyogamy and meiosis.
Use ascus when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Ascus means (mycology) A sac-shaped cell present in ascomycete fungi; it is a reproductive cell in which meiosis and an additional cell division produce eight spores..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
The one important character which distinguishes the Ascomycetes from all other fungi is the ascus (plural, asci). This is a sac-like structure in which ascospores are formed following karyogamy and meiosis.
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