PSY 302 Lecture Notes - Lecture 2: Amniotic Sac, Prenatal Development, Fallopian Tube
Document Summary
Chapter 2 prenatal development and the newborn period. Epigenesis: the emergence of new structures and functions in the course of development. Meiosis & gametes: meiosis: cell division that produces gametes, gametes (germ cells): reproductive cells egg and sperm that contain only half the genetic material of all other cells in the body. Conception: the union of an egg from the mother and a sperm from the father; fertilization. Four developmental processes that transform a zygote to embryo to fetus: mitosis cell division. Cell differentiation- specialization both structurally and functionally: which genes in the cells are switched on, being influenced by the neighbouring cells frog study. At 8th week, testes produce androgen male genitalia. Zygote hollow sphere called the inner cell mass. Twins that result from the splitting in half of the inner cell mass. Each of the two resulting zygotes have exactly same set of genes.
