In the wild-type operon (a+ b+ c+ d+ e+), how does the presence of the signal affect expression of the structural enzymes ?

1 answer:

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I think the presence of a signal affect the expression of the structural enzymes in that it stops the production of the structural enzymes. Without the signals, the structural enzymes are produced. Genomic DNA contains both the structural genes that encodes products that serve as cellular structures or enzymes, and regulatory genes, which encode products that regulate the expression. In multicellular organisms allows for cellular differentiation while in single celled organisms like prokaryotes , regulation ensures that a cell's resources are not wasted making proteins that the cell does not need at that time.

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The diagram below is a model of the process of transcription.

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Answer:

Explanation:

The purpose of the strand B be would be <u>to carry the code from the DNA molecule in the nucleus to the ribosome.</u>

<em>Looking closely at the diagram, strand B is the strand of RNA that is still in the process of being synthesized while strand A is acting as the template. The function of the RNA strand is primarily to carry an encoded message in the DNA molecule from the nucleus to the ribosome in the cytoplasm where the genetic codes would be translated during the process of protein synthesis.</em>

The correct option is, therefore, b.

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