Considering a viable error as a mutation that remains viable for the continuation of life, we can confirm that some people have red hair through viable errors due to mutations in the genetic code.
A viable error or mutation would be any mutation that allows the cell in question to stay alive. This is because there are mutations in which <em><u>key features or processes essential to life are altered. </u></em>
The cells that suffer these mutations would not be able to sustain life. The mutation that causes red hair is a mutation in the gene responsible for melanin (the pigment that gives hair its color) is <u>not one that affects an essential process.</u>
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For this reason, we can confirm that some people have red hair through viable errors given that these errors or mutations do not affect mechanisms <em><u>essential </u></em>to life.
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