DNA and Genes
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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nucleotides | small units
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double helix | 2 strands of DNA wind around each other like a twisted ladder
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base pairing | thymine with adenine, cytosine with gaunine
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replication | DNA copied during the cell cycle
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DNA polymerases | enzymes that form bonds between nucleotides during replication
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central dogma | info flows in one direction, from DNA to RNA
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RNA | Ribonucleic acid
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Transcription | particular segment of DNA is copied into RNA
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RNA polymerase | is an enzyme that produces primary transcript RNA
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Messenger RNA | the form of RNA in which genetic information transcribed from DNA as a sequence of bases is transferred to a ribosome
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ribosomal RNA | RNA component of the ribosome, and is essential for protein synthesis in all living organisms
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Transfer RNA | RNA consisting of folded molecules that transport amino acids from the cytoplasm of a cell to a ribosome
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Translation | the process in which cellular ribosomes create proteins
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Codon | is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or stop signal during protein synthesis
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Stop Codon | is a nucleotide triplet within messenger RNA that signals a termination of translation
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Start Codon | is the first codon of a messenger RNA (mRNA) transcript translated by a ribosome
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Anticodon | region of a transfer RNA is a sequence of three bases that are complementary to a codon in the messenger RNA
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Created by:
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