Here, the male gametes are non-flagellated and show amoeboid movement. Polysiphonia is a small upright bushy marine alga that also produces non- flagellated spermatia.
Does Polysiphonia have flagellated gametes?
Yes, Polysiphonia is anisogamous. There are several types of anisogamy. Both gametes may be flagellated and therefore motile. Alternatively, both of the gametes may be non-flagellated.
Does Polysiphonia produce non-flagellated gametes?
Spirogyra produces non-flagellated male gamete during conjugation, where entire cell content functions as gamete. Polysiphonia also produces non- flagellated spermatia.
Does Polysiphonia have motile male gametes?
In the red alga Polysiphonia, non-motile eggs are fertilized by non-motile sperm. Sexual reproduction is oogamous type and plants are dioecious i.e., male and female sex organs are produced on different male and female gametophytic plants.
Which set contains flagellated male gametes?
Pteris , Anthoceros and Funaria.
Which one of the following does not have flagellated male gamete?
Explanation – Gametes produced by Ectocarpus are biflagellated. In the process of conjugation, Spirogyra produces non-flagellated male gametes wherein the complete composition of the cell operates as gametes. Sexual reproduction is absent in Anabaena (cyanobacteria). Even Polysiphonia produce non-flagellated spermatia.
Which algae does not have flagellated male gametes?
In Spirogyra, sexual reproduction occurs through conjugation in which more active male gamete passes through a conjugation tube and fuses with female gamete of the cell of the adjacent filament. Here, the male gametes are non-flagellated and show amoeboid movement.
Which set contains non-flagellated male gametes with Oogamous reproduction?
Isogamy is found in Spirogyra in which both gametes are non-motile. In Chlamydomonas, all three conditions, isogamy anisogamy and oogamy are found. Both motile and non-motile gametes are found. In Volvox and Fucus, oogamy is present, where non-motile egg fuses with motile sperm.
Which of the following are male gametes?
They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome. These reproductive cells are produced through a type of cell division called meiosis.
Is Ulothrix flagellated?
Hint: Ulothrix is a non-branching filamentous green algae. It is generally found in marine and freshwater. The mode of reproduction of Ulothrix is by both asexual method and sexual method. They produce two flagella gametes.
Which plants produce non-motile male gametes?
The male and female gametes are produced by flowers. Flowers mainly have petals, sepals, stamen, and pistil. Stamen is the male reproductive part and has anther and filament. The anther produces and stores the pollen which is the male gamete and is non-motile.
Does Chara have motile male gametes?
Chara is similar to Marchantia as both have Nonmotile male gametesâ€‹. Chara and Marchantia both species possess on motile gametes and they need means of pollination for fusion.
Which of the following is non-flagellated?
Asexual spores of red algae are non-motile and hence lack flagella.
Does Pinus have flagellated male gametes?
Pollination takes place at 4-celled stage in pinus, i.e. two prothallial cells, a generative cell and a tube cell. 5. there are two non-motile male gametes in pinus, without any cilia, develop from generative cell.
Are male gametes of Pteridophytes motile?
Bryophytes and Pteridophytes require water for fertilization and have motile male gametes.
Does Wolffia produce motile male gametes?
pollen grain is the carrier of non-motile gamete in  Riccia  cycas  wolffia  Pteris … Cycas belongs to gymnosperms. These are seed bearing plants and produce non motile gametes. The pollen grain acts as carrier of non motile male gamete and transfers it to the female flower for fertilisation to take place.