Label/Circle option: If given a hypothetical operon (either Lysine operon or Man

Question

Label/Circle option: If given a hypothetical operon (either Lysine operon or Mannitol Operon) be able to predict how the presence of the metabolite in the cell would affect the regulation of its operon. a. Is the metabolite anabolic or catabolic? b. Is the operon an Inducible or Repressible operon? c. Is the repressor protein bound or released in the presence of its metabolite? d. Does the operon have its genes expressed or not expressed in the presence of its metabolite? Based on what you know about the metabolite (Lysine or mannitol) in terms of whether it is nucleotide, amino acid, or sugar you should be able to predict the outcome of its operon type. zec, igue: Ogier!1CA 9ug wsq(9 B9C81.OMWq

Explanation / Answer

For Lys operon:

1. Anabolic

2. Repressible negative

3. If the metabolite (Lys) is present, operon is repressed (repressor protein bound to the operator).

4. In the presence of Lys, the expression of structural genes of the operon is repressed.

For Mannitol operon:

1. Catabolic

2. Inducible negative

3. If the metabolite (Mannitol) is present, operon is activated (repressor protein not bound to the operator).

4. In the presence of Mannitol, the expression of structural genes of the operon is promoted.

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