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Random mutations only very rarely result in changes that improve a protein's usefulness for the cell, yet useful mutations are selected in evolution. Because these changes are so rare, for each useful mutation there are innumerable mutations that lead to either no improvement or inactive proteins. Why, then, do cells not contain millions of proteins that are of no use?
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Question Text | Random mutations only very rarely result in changes that improve a protein's usefulness for the cell, yet useful mutations are selected in evolution. Because these changes are so rare, for each useful mutation there are innumerable mutations that lead to either no improvement or inactive proteins. Why, then, do cells not contain millions of proteins that are of no use? |
Topic | All topics |
Subject | Biology |
Class | Class 11 |