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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
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19zbell 19zbell
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6 years ago
Would a two-letter code with four different nucleotides be sufficient to encode the 20 amino acids found in cells? Why or why not? What does the three-letter code imply about the nature of the genetic code?
 
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6 years ago
A two-letter code would only encode 16 (42 ) amino acids, so it would not be sufficient. A three-letter code generates 64 (43 ) possible codes, which is more than enough for the 20 amino acids found in cells. This implies that some amino acids may be specified by more than one codon.
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