Question

The dominant phase in life cycle of Funaria is:
A. Protonema
B. Leafy gametophyte
C. Spore
D. Sporophyte

Answer 1

Hint: The grown-up gametophyte (gametophore) is separated into rhizoids, roots, or 'stem' and 'leaves'. Rhizoids emerge from the base of the root. They are slim, expanded, and multicellular and have angled septa. Axis is 1—3 cm. high, upstanding, thin, and spread. Each branch is extra axillary i.e., emerge under a leaf. Leaves are sessile, elliptical praise with the whole edge, pointed zenith, and are orchestrated spirally on the branches and 'stem'.

Complete answer:
The existing pattern of Funaria is haplo-diplontic type. In the everyday routine cycle free experiencing haploid gametophyte substitutes with a semiparasitic diploid sporogonium (Sporophyte). In this sort of variation, it is called as heteromorphic or heterologous. In Funaria, the primary plant body is free-living gametophyte (n) which exists in 2 structures for example protonema (adolescent gametophyte) and leafy gametophore (grown-up gametophyte).
The leafy gametophyte is the prevailing period of Funaria as the vegetative assortment of itself is spoken to by these leafy gametophores. It has two unmistakable development arranges, a prostrate filamentous alga-like protonema, and an upstanding gametophore.
Hence, correct option is B.

Note: The plant recreates vegetatively and sexually.
-Vegetative Reproduction: The essential protonema created because of the spore germination increases vegetatively either by separating branches or little terminal gatherings of cells, the-buds.
-Each such branch or the gathering of cells gets isolated by certain intercalary boring cells and forms into another plant.
-Sexual Reproduction: The plants are monoecious, autoecious, and protandrous, i.e., antheridia and archegonia happen on the various parts of a similar plant, and the antheridia grow first.
-The sex organs are borne in terminal gatherings on the types of prolific branches, the gametophores.