Polypeptides Must Be Sorted After Translation

question 18

Essay

Polypeptides must be sorted after translation. Does protein sorting occur in both prokaryotes and eukaryotes? Describe the process of protein sorting and explain how the signal sequence is involved. What would you expect to see if the signal sequence has been mutated or deleted?

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Definitions:

Unconditioned Response

A natural, automatic reaction to a stimulus that occurs without prior learning or conditioning.

Conditioned Response

A response acquired through learning to a stimulus that was initially neutral, but has been paired with an unconditioned stimulus via conditioning.

Conditioned Stimulus

A previously neutral stimulus that, after being repeatedly associated with an unconditioned stimulus, elicits a conditioned response.

Unconditioned Stimulus

In traditional conditioning, a stimulus that instinctively and automatically elicits a response without previous learning.