Question 1
Mutations that eliminate a contiguous region in the
Drosophila embryo's segmentation pattern are called ________.
◦ segment genes
◦ linkage genes
◦ compartment genes
◦ gap genes
◦ homeodomains
Question 2
Which of the following is a fundamental characteristic of the Notch pathway?
◦ It works through direct cell-to-cell contact.
◦ It directs mRNAs to antisense systems in the posterior portion of all organisms.
◦ It allows mRNAs to accumulate in the posterior portion of the
Drosophila embryo.
◦ It provides symmetry to plant flowers.
◦ It works through nuclear signals involving the
lac operon.