NEET BIOLOGY

Detailed explanation-1: -The sporangium undergoes meiosis and forms haploid spores. The spore develops into a gametophyte which is haploid in nature. The gametophyte has the reproductive organs which undergo mitosis to form haploid gametes. The gametes fertilize to form a haploid zygote which matures into a mature sporophyte.

Detailed explanation-2: -Alternation of generations means that plants alternate between two different life stages, or generations, in their life cycle; a haploid stage called gametophyte and a diploid stage called sporophyte.

Detailed explanation-3: -The sexual phase, called the gametophyte generation, produces gametes, or sex cells, and the asexual phase, or sporophyte generation, produces spores asexually. In terms of chromosomes, the gametophyte is haploid (has a single set of chromosomes), and the sporophyte is diploid (has a double set).

Detailed explanation-4: -Gametophytes Are the Haploid Stage The gametophyte stage, or generation in the alternation of generations life cycle, is the haploid (n) stage. The gametophyte stage can also be thought of as the sexual stage because it will produce the gametes, or sex cells. This stage only has one set of chromosomes.

Detailed explanation-5: -The gametophyte is the sexual phase in the life cycle of plants and algae. It develops sex organs that produce gametes, haploid sex cells that participate in fertilization to form a diploid zygote which has a double set of chromosomes.