MCD BIO 138 Study Guide - Midterm Guide: Oogenesis, Body Plan, Wild Type
Document Summary
Maternal effect pattern genes are expressed specifically during oogenesis and their protein products control the establishment of the body plan of the embryo. For a maternal effect gene, the phenotype of the embryo is determined by the genotype of the mother. We will not consider this class of genes further: dorsal-ventral class genes--mutations lead to defects in patterning along the d/v axis. Some mutations lead to "dorsalized" embryos, where more cells than usual (or all cells) adopt a dorsal identity.