The axial and appendicular skeleton is shown in the diagram on the right. The axial skeleton is shown in a bright yellow/green colour and the appendicular skeleton is shown in pink (or pale purple, depending on your display and settings). As shown in the diagram of the axial and appendicular skeleton:The Axial Skeleton consists of the: 1  Skull (cranial bones and facial bones).he axial skeleton is shown in a bright yellow/green colour and the appendicular skeleton is shown in pink (or pale purple, depending on your display and settings). As shown in the diagram of the axial and appendicular skeleton: The Axial Skeleton consists of the: 1  Skull (cranial bones and facial bones).
Homologue pairs separate during a first round of cell division, called meiosis I. Sister chromatids separate during a second round, called meiosis II. Since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase.
Meiosis is a process by which we can halve the number of chromosomes. It takes place whenever the organism has to produce daughter cells that have half the number of chromosomes as the parent cells. In humans, meiosis occurs in spermatogonial and oogonial cells to produce sperms and eggs respectively. In higher plants which have a dominant diploid sphorophytic phase, the gametophytic phase is produced by meiosis. Meiosis occurs in almost all the higher living organisms.