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RNA Translation and the Cardiovascular System

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Please help answer the following questions.

What function does the "leader sequence" have in RNA translation. What would happen if it were missing? Does this protein need a leader sequence?

Starting at the Vena Cave and ending at the Aorta, describe the exact pressure changes that blood undergoes as it flows through each chamber of a health heart?

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This posting helps with a problem about RNA translation.

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What function does the "leader sequence" have in RNA translation. What would happen if it were missing?

Response: A leader sequence is important for the routing of the eventual protein product. Think of it as a tag. When the mRNA begins to translate its code into protein at the ribosome, if there is a leader sequence it gets translated into an amino acid sequence first. This leader sequence acts as a signal to cause translation to halt until the ribosome can attach itself to the ER (endoplasmic reticulum). There, translation continues and the protein gets directed to its proper location in the ...

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