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GRE Subject Question

How many different primary sequences are possible for a pentapeptide made from naturally occurring amino acids?

Considering that most proteins are composed of one hundred or more what conclusions can be drawn from the calculation?

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Considering that there are 20 naturally occuring amino acids, there could be any 1 of 20 in the first position. Then, there could be any 1 of 20 in the second position. That means ...

Solution Summary

The solution is provided in an approximately 100 word explanation.