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Urgent Bio Help

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December 19, 2007 - 02:36
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snnix
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Urgent Bio Help

Hello everybody, I'm new here. Sorry for doing this last minute (like always :( ) but if anybody is awake in this time of night could you please answer any of the following questions below (anything will help!) Thank you soooo much!!!!

1. Types of reactions needed to catabolize or anabolize macromolecules
2. What are enzymes composed of, how do enzymes work, do enzymes require the use of other molecules? What inhibits enzyme action? What mechanisms help regulate enzyme function?
3. The major types of chemical messengers (including second messengers) used in cell signaling
4. If a species (2n=6) how many different combinations are possible in a gamete?
5. What is the result of crossing over?

Thank you!!!:)

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