Oracle
How many standard amino acids are encoded by the universal genetic code? Answer with the whole number only.
Answer
20
- standardAminoAcid
- one of the 20 proteinogenic amino acids specified by codons of the universal genetic code, excluding the rare co-translationally incorporated selenocysteine and pyrrolysine
- sources
- , educationalgames.nobelprize.org, en.wikipedia.org, febs.onlinelibrary.wiley.com, goldbook.iupac.org, iupac gold book, 'genetic code' (https://goldbook.iupac.org/terms/view/g02615), which states that the genetic code assigns each of 20 amino acids to one or more of 61 triplets; nhgri, 'amino acids' (https://www.genome.gov/genetics-glossary/amino-acids), which states there are 20 different amino acids., iupac-iubmb joint commission on biochemical nomenclature, nomenclature and symbolism for amino acids and peptides (1983); ncbi/nih 'the genetic codes' reference (https://www.ncbi.nlm.nih.gov/taxonomy/utils/wprintgc.cgi) describing the standard genetic code table encoding 20 amino acids plus stop codons, lobanov av et al., is there a twenty third amino acid in the genetic code? pubmed (2006), https://pubmed.ncbi.nlm.nih.gov/16713651/, lobanov et al., is there a twenty third amino acid in the genetic code? pubmed abstract, https://pubmed.ncbi.nlm.nih.gov/16713651/, ncbi - the genetic codes (https://www.ncbi.nlm.nih.gov/taxonomy/utils/wprintgc.cgi) and nhgri talking glossary entry 'genetic code' (https://www.genome.gov/genetics-glossary/genetic-code), both stating the standard/universal genetic code specifies 20 amino acids via 61 sense codons plus 3 stop codons, ncbi genetic codes (standard code, transl_table=1): https://www.ncbi.nlm.nih.gov/taxonomy/utils/wprintgc.cgi, ncbi/nih genetic code reference (https://www.ncbi.nlm.nih.gov/class/mlacourse/modules/molbioreview/codon_table.html) and standard molecular biology textbooks (e.g., alberts et al., molecular biology of the cell) stating the universal genetic code specifies 20 standard amino acids via 61 sense codons, ncbi/nih genetic code reference (standard codon table, table 1) and standard molecular biology textbooks (e.g., alberts, molecular biology of the cell) state that the universal genetic code specifies 20 standard amino acids via 61 sense codons, ncbi/nih genetic code reference (standard genetic code table): 64 codons encode 20 standard amino acids plus 3 stop codons; consistent with iupac-iubmb amino acid nomenclature (20 standard proteinogenic amino acids)., ncbi/nih genetic code reference (standard genetic code table); iubmb nomenclature: 20 standard proteinogenic amino acids, ncbi/nih genetic code reference (the genetic codes, ncbi taxonomy) and standard molecular biology textbooks (e.g., alberts et al., molecular biology of the cell), which state the standard genetic code specifies 20 standard amino acids via 61 sense codons., ncbi/nih genetic code textbook reference: the standard genetic code table maps 61 sense codons to 20 standard amino acids (e.g., nature scitable, 'genetic code', and molecular biology of the cell, alberts et al.), ncbi/nih genetics education materials and standard molecular biology textbooks (e.g., alberts, molecular biology of the cell) state that the standard genetic code specifies 20 standard amino acids via 61 sense codons, with 3 stop codons, ncbi/nih genetics primers and standard molecular biology textbooks (e.g., molecular biology of the cell; ncbi bookshelf) state that the universal genetic code specifies 20 standard (proteinogenic) amino acids, ncbi/nih genetics reference and standard molecular biology textbooks (e.g. molecular biology of the cell) state that the standard genetic code specifies 20 standard amino acids via 61 sense codons plus 3 stop codons, ncbi/nih genetics textbook consensus: the standard genetic code's 61 sense codons encode 20 standard amino acids (e.g. https://www.ncbi.nlm.nih.gov/books/nbk26830/, molecular biology of the cell, table of the genetic code), ncbi/nih molecular biology reference (genetic code table): the standard genetic code's 61 sense codons encode 20 standard amino acids, with 3 stop codons, ncbi/nih molecular biology reference (genetic code table); standard biochemistry textbook consensus (e.g., lehninger principles of biochemistry) that the universal genetic code specifies 20 standard amino acids via 61 sense codons, ncbi/nih molecular biology reference (genetic code table); standard biology textbooks (e.g., alberts et al., molecular biology of the cell) confirm 20 standard amino acids encoded by the 61 sense codons of the universal genetic code, ncbi/nih molecular biology reference (standard genetic code table); iupac-iubmb nomenclature of amino acids and peptides, ncbi/nih molecular biology reference (the genetic code, ncbi bookshelf, and standard biochemistry textbooks such as alberts' molecular biology of the cell) state that the universal genetic code encodes 20 standard amino acids via 61 sense codons, with 3 stop codons., ncbi/nih molecular biology reference (universal genetic code encodes 20 standard/proteinogenic amino acids via 61 sense codons, per the standard codon table), ncbi/nih national human genome research institute (genome.gov) glossary entry on the genetic code and the standard genetic code table (64 codons, 61 sense codons encoding 20 standard amino acids plus 3 stop codons), ncbi/nih standard genetic code reference (codon table) and standard molecular biology textbooks (e.g., alberts, molecular biology of the cell), which state the universal genetic code specifies 20 standard amino acids via 61 sense codons, ncbi/nih standard genetic code table (codon table) and standard molecular biology reference (e.g., alberts et al., molecular biology of the cell) both state the universal genetic code specifies 20 standard amino acids, ncbi/nih standard genetic code table (codon-to-amino-acid translation table); iupac-iubmb nomenclature of amino acids and peptides — both state the universal genetic code specifies 20 standard amino acids, ncbi/nih textbook consensus (e.g., ncbi bookshelf, 'molecular biology of the cell'): the standard/universal genetic code specifies 20 standard amino acids via 61 sense codons plus 3 stop codons, ncbi/nih textbook reference (molecular biology of the cell, and iupac-iubmb nomenclature): the standard genetic code specifies 20 standard amino acids via 61 sense codons, plus 3 stop codons., ncbi/nih textbook reference: the standard genetic code (64 codons, 61 sense codons) specifies 20 standard amino acids plus stop signals; this is standard molecular biology consensus (e.g., alberts et al., molecular biology of the cell; ncbi genetic codes table 1, 'standard code'), ncbi/nih: 'the genetic code is degenerate ... 20 amino acids' (https://www.ncbi.nlm.nih.gov/books/nbk21154/); consistent with standard molecular biology textbooks (e.g., alberts, molecular biology of the cell), ncbi/standard molecular biology textbooks (e.g., nucleic acids research 'the genetic codes' resource; alberts et al., molecular biology of the cell) describing the standard genetic code as encoding 20 standard amino acids via 61 sense codons, nhgri, 1966: genetic code cracked (https://www.genome.gov/25520300/online-education-kit-1966-genetic-code-cracked); nhgri, wildin transcript (https://www.genome.gov/multimedia/transcripts/wgt/wildin_transcript.pdf), nomenclature and symbolism for amino acids and peptides (iupac-iubmb joint commission on biochemical nomenclature, 1983), and standard molecular biology references (e.g. alberts et al., molecular biology of the cell), which state that the universal genetic code specifies 20 standard (proteinogenic) amino acids via the standard set of sense codons, pmc.ncbi.nlm.nih.gov, pubmed.ncbi.nlm.nih.gov, wikipedia, 'genetic code' (https://en.wikipedia.org/wiki/genetic_code): the standard genetic code encodes 20 standard amino acids; corroborated by the ncbi genetic code tables (https://www.ncbi.nlm.nih.gov/taxonomy/utils/wprintgc.cgi)., www.genome.gov, www.ncbi.nlm.nih.gov
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#59520NCBI/NIH textbook consensus (e.g., NCBI Bookshelf, 'Molecular Biology of the Cell'): the standard/universal genetic code specifies 20 standard amino acids via 61 sense codons plus 3 stop codons
#169020from www.genome.gov
#175920from www.ncbi.nlm.nih.gov
#29320from www.ncbi.nlm.nih.gov
#72920from www.ncbi.nlm.nih.gov68 more
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