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Suppose cells in the process of dividing are dosed with colchicine, a drug that interferes with the polymerization of microtubules. At which stage do you think will mitosis be arrested? Why?

The fruit fly, Drosophila melanogaster, has a total of eight chromosomes in each of its somatic cells.    2n=_____   On a separate sheet of paper, draw a fruit fly cell at the end of telophase/beginning of cytokinesis.  Draw the proper number of chromosomes (assume they’re still fully condensed).   Label: Each chromosome (numbered 1-__) Nuclear envelope Centromere Centrosome Cleavage furrow   Then, turn this drawing in as a file upload question here.

Identify and explain the process in eukaryotic cells that will proceed normally whether oxygen (O2) is present or absent. How is this possible? Why is this such a necessary and positive adapation within cells?

Relating back to your graphs from the previous question answer the following: a) name and briefly describe the biological processes that are operating in the lake to produce the observed data.  Explain how these processes would account for your prediction of the results for a heavily overcast day. b) Describe how the introduction of extremely high levels of nutrients such as nitrates and phosphates (basically algae fertilizer) would affect subsequent oxygen level observations over the next several months. Consider the fact that the algae will eventually die and get decomposed by bacteria and fungi.

Which of the following describes the events of apoptosis?

Hypothesize and explain why the oxidation of organic compounds by molecular oxygen to produce carbon dioxide and water release free energy. BE SPECIFIC.

Choosing one or more of the processes we learned about in this unit, create an analogy or multiple analogies from real life scenarios that can be used to compare to the cell process you chose. Explain how they are analogous.

Why aren’t human populations evolving to produce immune systems that are able to fight off MRSA and other “superbugs”?

Blood that has a continuous steady flow and is darker red is from:

Someone who has severe pain in their chest is suffering from: