Chapter 25, Problem 14STP

Summary Introduction

To determine:

Alternation of generations in plants

Introduction :

Alternation of generations is referred to a phenomenon, which occurs in many organisms, mostlyin plants, in which they have two different life forms in a single life cycle. Plant showingalternation of generations can exist in two phases gametophyte and the sporophyte.

Explanation of Solution

Plant showing alternation of generations can exist in two phases gametophyte and the sporophyte. Alternation of generations is referred to as a phenomenon, which occurs in many organisms, mostly in plants, in which they have two different life forms in a single life cycle.

In the alteration of the generation, the spores develop in haploid gametophyte, the gametophyte is the haploid. This gametophyte give rise to the male and female gamete by the process of mitosis. The fertilization of the male and the female gamete gives rise to the diploid sporophyte. This sporophyte can undergo meiotic division, which produces spores.