A lab is working on drugs that disrupt cell division (a typical strategy for chemotherapy) and have developed drugs that inhibit DNA replication in tumor cells. You, being a curious grad student want to test each drug and figure out which DNA replication enzyme it targets. You grow bacteria in […]

You are studying behavior in Aplysia, and discover a isolated population of these animals that show impaired habituation to the syphon/gill reflex behavior, that is they show a withdrawal reflex as strong on the 20th trial as the 1st trial. a) What channels or receptors might be altered in this […]

Population Density Lab NOTE: You will need a TI-83 or 84 graphing calculator for this lab. If you don’t own one, try to borrow one. If you cannot borrow one, there are free TI-83 calculator downloads online here: http://education.ti.com/en/us/software/details/en/480DF008128C49DDA5E882E76CE9C8B2/swti83plussdk Although density is usually an important population characteristic in ecological studies, […]

Exercise 1: Hanging-drop and wet-mount preparations 1. How does true motility differ from Brownian movement?2. What morphological structure is responsible for bacterial motility?3. Why is a wet preparation discarded in disinfectant solution or biohazard container?4. What is the value of a hanging-drop preparation?5. What is the value of a wet-mount […]