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In: Biology

1. Explain how one gene in Drosophila can code for 17,500 different nerve cell surface proteins.  ...

1. Explain how one gene in Drosophila can code for 17,500 different nerve cell surface proteins.  

2. Outline two modification of the structure of the nucleosome that regulate transcription.

3. Outline how the structure of the operon (location of the promoter, the sequence of genes and the locations of stop and start codons in the mRNAs) allow for coordinated control of an enzymatic pathway.

4. Compare and contrast a repressible operon to an inducible operon. Give one example of each.

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