OBJECTIVE LIFE SCIENCE
APPLIED BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What are some of the ways are body is protected from mutations?
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98% of our DNA is non-coding thus, the chances of changing a gene is limited
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Telomeres prevent the loss of genes when DNA replicates
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The DNA code is protected by the complementary non-coding side of DNA
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Multiple codons code for the same amino acid
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Explanation:
Detailed explanation-1: -Because there are only 20 different amino acids but 64 possible codons, most amino acids are indicated by more than one codon. (Note, however, that each codon represents only one amino acid or stop codon.)
Detailed explanation-2: -One codon can naturally evolve to code for two different amino acids, even within one gene, with the choice of the inserted amino acid determined by an RNA structure in the 3′-untranslated region.
Detailed explanation-3: -Redundancy in the genetic code protects against mutations. If a single base is mutated, then it is possible the new mutated codon would result in the same amino acid being incorporated into a protein. However, not all amino acids are specified by multiple codons.
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