NEET BIOLOGY

Detailed explanation-1: -Typically, a single ascus can contain eight ascospores. The eight spores are produced by general meiosis followed by a mitotic division. Two meiotic divisions turn the original diploid zygote nucleus into four haploid ones.

Detailed explanation-2: -One to two ascospores are usually formed per ascus, but for some species up to four ascospores may be present.

Detailed explanation-3: -The form of the ascus, the capsule which contains the sexual spores, is important for classification of the Ascomycota. There are four basic types of ascus.

Detailed explanation-4: -Each ascus contains 4-8 ascospores.

Detailed explanation-5: -A haploid zygote that forms in the ascocarp undergoes karyogamy, meiosis, and mitosis to form eight ascospores.