What is nuclear mitosis?
During nuclear mitosis, nuclear envelope does not break instead the mitotic spindle forms within the nucleus and the nuclear membrane constricts. between the two clusters of daughter chromosomes.
What is Armillaria?
A circular clone of Armillaria, growing out from a central focus, has been measured up to 15 hectares (1 hectare = 10000 m2). Armillaria is a pathogenic fungus afflicting conifers.
How spores are different from conidia?
Conidia are non-motile, asexual spores which are formed at the tips of modified hyphae called conidiophores. They are not found inside the sporangia, but usually in the form of chains or clusters While spores are haploid, non-motile and produced in very large number within sporangia.
Write two benefits of each of algae and fungi.
- Some algae such as keips are edible and may be used to overcome shortage of food in the world
- Marine algae are also source of many usefui substance like algin, agar, carrageenan, and antiseptics.
Fungi: Some fungi are source ci antibiotics and some other drugs e.g., penicillin and Certain fungi are used in food industry e.g., yeasts (Saccharomyces cerevisiae) are used in the production of bread and liquor.