NEET BIOLOGY

Detailed explanation-1: -In mosses, the dominant stage is the haploid generation (the gametophyte). This means that the green, leafy gametophytic tissue is haploid (has only one set of chromosomes). The gametophyte refers to all organs and tissues that are a part of the haploid generation.

Detailed explanation-2: -In bryophytes (mosses and liverworts), the dominant generation is haploid, so that the gametophyte comprises what we think of as the main plant. The opposite is true for tracheophytes (vascular plants), in which the diploid generation is dominant and the sporophyte comprises the main plant.

Detailed explanation-3: -Practically all flowering plants are diploid, but for mosses, this is different. Mosses alternate between diploid generations (as sporophytes) and haploid generations (as gametophytes).

Detailed explanation-4: -The life cycle of mosses alternates between the haploid gametophyte and the diploid sporophyte, called alternation of generation. The female and male gametophyte produce haploid gametes, which fuse to form a zygote and give rise to the diploid sporophyte.

Detailed explanation-5: -The moss gametophyte stage is haploid and occurs between a male and female. The type of reproduction in this stage is sexual, meaning gametes from two parents are shared to create offspring. Mosses are gametophyte dominant, meaning the majority of the lifecycle is the haploid phase.