Developmental Biology notes

Developmental Biology 12th Edition By Michael J.F. Barresi; Scott F. Gilbert

These notes summarize all the concepts in Chapter 3 of the textbook: Developmental Biology (12th edition). They are concise and very detailed to aid in understanding. Relevant diagrams and images are also included to further enhance the topics. The notes are A4 and in pdf format. The end of the notes consist of a page summary of the entire chapter of differential gene expression to further highlight the key points from the summary.

Details the cellular and genetic process in drosophila development, specifically the role that nuclear aggregation, synchronized division, maternal effect genes, and segment polarity play in development.

Details how epigenetics influences embryonic development and fertilization, the process by which epigenetics affects transcription and gene expression, and the role of cadherin, kinases, and fibroblast growth factor. Also describes several significant genetic processes in embryonic development and gene transcription.

Describes the structure of sperm and egg involved in external fertilization and their life stages. Describes the process in which sperm enters the egg and begins cell division. Includes descriptions of issues and errors that occur with external fertilization including polyspermy and membrane depolarization.

Describes the genes involved in sex determination and gametogenesis in flies and humans, and errors that occur in gametogenesis.

Details genetic processes of invertebrate embryonic development. Describes the stages of invertebrate embryonic development and growth. Describes autonomous specification in tunicates and rotational symmetry in embryos, as well as the establishment of anterior-posterior polarity.

Describes the physical and genetic components of frog fertilization and embryonic stages. Describes rotation and polarity of frog embryo and the polarity of the blastula. Also describes epiboly and intercalation of embryonic germ layers.

Describes the role that egg yolk and shell play in avian development as well as how they are formed. Also details the genetic processes involved in avian development and axis formation. Also describes stages of cell division within the embryo and formation of the notochord.

Describes the genetic components of mammalian embryonic development, the stages of fertilization, and early division events. Explains the role that Hox genes play in limb development and transcriptional expression.