Question

Question 8
In Spirogyra, asexual reproduction takes place by

(a) breaking up of filaments into smaller bits
(b) division of a cell into two cells
(c) division of a cell into many cells
(d) formation of young cells from older cells

Answer 1

(a) breaking up of filaments into smaller bits

Spirogyra undergoes vegetative, asexual, and sexual reproduction. Vegetative reproduction is by fragmentation. Under favorable conditions, vegetative reproduction is the preferred mode of reproduction. The vegetative filament after fragmentation develops into a new filament. Each fragment undergoes multiple divisions and elongations to form a new filament.