AP BIOLOGY

Detailed explanation-1: -The ‘alternation of generations’ in the life cycle is thus between a diploid (2n) generation of sporophytes and a haploid (n) generation of gametophytes.

Detailed explanation-2: -The sporophyte is a diploid (2n) spore-producing plant. When reproducing, the sporophyte produces specialized leaves called sporophylls.

Detailed explanation-3: -Remember that sporophytes are diploid (have two sets of chromosomes) and gametophytes are haploid (have one set of chromosomes).

Detailed explanation-4: -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-5: -This zygote is resulted due to the fusion of two haploid gametes: male and female gametes. The formed zygote is later developed into a sporophyte, a diploid multicellular structure. This means that the sporophyte consists of two sets of chromosomes from each parent, and it is represented by the letter 2n.