NEET BIOLOGY

Detailed explanation-1: -Complete answer: The life cycle of Funaria has two generations; Gametophytic (n) and the Sporophytic (2n). > Protonema-Its structure is such that it forms thread-like chains of cells in haploid phase.

Detailed explanation-2: -A protonema is a thread-like chain of cells that forms the earliest stage (the haploid phase) of a bryophyte (e.g., Funaria) life cycle. When a moss first grows from the spore, it grows as a protonema which develops into a leafy gametophore.

Detailed explanation-3: -Therefore, protonema is haploid and found in mosses.

Detailed explanation-4: -Final answer: The ploidy of capsule, seta, and rhizoids respectively in Funaria is 2n, 2n, n.

Detailed explanation-5: -Funaria is moss and it belongs to the kingdom Bryophyta. Funaria keeps switching between the gametophytic division and sporophytic division phase. The capsule and seta belong to the sporophyte which undergoes meiosis to produce spores. Hence they are diploid (2n).