Each position of a codon can be occupied by one of four nucleotides. What is the minimum number of nucleotides per codon necessary to specify all 20 of the amino acids that are typical of eukaryotic proteins?
What will be an ideal response?
The minimum number of nucleotides per codon (assuming four total nucleotides) necessary to specify all 20 amino acids would be three. One-nucleotide codons could specify only four amino acids, and two-nucleotide codons could specify only 16 amino acids. Three-nucleotide codons can specify 64 amino acids (ignoring stop codons).
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Which of the following is a eutherian mammal?
a. human being b. koala bear c. platypus d. Tasmanian devil
To create cows, sheep, and pigs that grow faster and larger, the gene for ________ has been inserted into their genomes
Fill in the blank(s) with correct word
After hemoglobin binds carbon dioxide, it is known as
A. carbaminohemoglobin. B. alpha hemoglobin. C. deoxyhemoglobin. D. beta hemoglobin. E. oxyhemoglobin.
Which is correct?
A. Neanderthals are Homo neanderthalensis B. Neanderthals are Homo neandertalensis C. Neandertals are Homo neanderthalensis D. Neandertals are Homo neandertalensis E. Neandertals are Homo habilis