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A Case of Natural Selection

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Writing Assignment II

A Case of Natural Selection: White-Stripped Clover

Arrie Nicole Travis

May 1, 2014

Part I – “I’m Looking Over…”

Exercise 1

The habitat in Minnesota has cold winters and warm summers. It has moderate rainfall (snow included) and there are not many herbivores.

The habitat in North Carolina has mild winters and hot summers. It has heavy rainfall and there are abundant of herbivores.

Part II – Unlucky Clover

Exercise 2

a. The two gene products are stored in different part of the cell because it takes more energy to combine these products to produce cyanide.

b. One way these products might come together to make active CN in nature is when an herbivore consumes the leaves. A second way to activate CN is in winter/spring when the plant freezes and thaws, the cell membrane burst and combines with the cytoplasm.

c. The clover may produce cyanide to discourage herbivores from consumption....