In this article we will discuss about the genetics of development of plants, explained with the help of suitable diagrams. Much work has been done in determining the genetic control in development in plants. Extensive work has been done in thale cress, Arabidopsis thaliana, a member of the mustard family. It is a dicotyledonous angiosperm, ideal for the study of [...]
With some initial difficulties, the fruit fly Drosophila melanogaster has emerged as an excellent model organism, for the study of development. The zygote develops from the egg. Maternal mRNAs and proteins are the first expressed in the embryo. Drosophila: The organism that unravelled mysteries of genetics These substances first determine the broad pattern of the embryo. Then, through, signal pathways [...]
In this essay we will discuss about the genetics of development of drosophila, explained with the help of suitable diagrams. General Body Plan: The role genes play in determining the general axes of the body plan has been worked out at several levels. First, mutations causing female sterility were isolated. (C. Nusslein-Volhard and E. Weischans (1980) were instrumental in systematically [...]