Developmental Biology -- BIO3323


About the course: The course description in the college catalog includes:

A study of morphogenesis, including structural and biochemical changes during development and the mechanisms which control developmental processes. Control, patterns, and the mechanisms of the morphogenetic cell movements are considered in depth.
The course includes a laboratory.
Prerequisite, Biology 2210 (Cell Biology).

This is a course about embryonic development. It has components of anatomy, biochemistry, genetics and cell biology, since the modern field of developmental biology is an amalgam of these.

A fertilized animal egg is usually a sphere, or something close to it. Adult animals have a wide variety of shapes, including representatives with radial and bilateral symmetry. Our task is to understand the transition between.

The laboratory component of the course serves a mix of needs. Students have perhaps their first real look at development in a variety of organisms (alive, where possible). Subjects vary from year to year, but have included birds (chicks), amphibians (both frogs and salamanders), fish (medaka, zebrafish), echinoderms (sea urchins), flies (fruit flies) and marine worms. We explore ways to obtain and handle fertilized eggs, various methods of manipulating and observing them, and an assortment of experimental approaches to answer outstanding questions in the field.

Fruit fly egg, photo by Bill Long


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