Bioinformatics provides database information to align proteins from novel sequences with known proteins. If a new amino acid sequence does not match an existing sequence ________.
A. it is called an paralogue; the DNA that codes the ORF does not match any other organism in the database and the function is not known
B. it is called an orthologue; the DNA that codes the ORF does not match any other organism in the database and the function is not known
C. it is either a conserved hypothetical protein, i.e., the DNA matches genes in the database but they have no known function, or it is a protein of unknown function; the genes are unique to that organism
D. it is either a protein of unknown function, i.e., the DNA matches genes in the database but they have no known function, or it is a conserved hypothetical protein; the genes are unique to that organism
Answer: C
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