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DNA Flashcards

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2264038520NucleotideA DNA building block of nucleic acid formed from a simple sugar, a phosphate group, and a nitrogenous base.0
2264038521MutationA change in the nucleotide-base sequence of a gene or DNA molecule1
2264039713Ribonucleic Acid (RNA)A nucleic acid consisting of a chain of nucleotides that contain the sugar ribose and the nitrogenous bases adenine, guanine, cytosine, and uracil. RNA performs protein synthesis.2
2264039955ReplicateTo duplicate. The DNA molecule makes a copy of itself.3
2264040543Double HelixDouble spiral; it describes the three-dimensional shape of DNA.4
2314714544Adenine (A)Nitrogenous base that pairs with thymine (T) during DNA replication.5
2314731392Thymine (T)Nitrogenous base that pairs with adenine (A) during DNA replication.6
2314738919Cytosine (C)Nitrogenous base that pairs with guanine (G) during DNA replication.7
2314749980Guanine (G)Nitrogenous base that pairs with cytosine (C) during DNA replication.8
2314758106Chargaff's RuleStates that base pairs occur in equal amounts. The amount of (A) = the amount of (T), and the amount of (C) = the amount of (G).9
2314851629X-Ray DiffractionA process used by Rosalind Franklin to make images of DNA that helped reveal the structure of DNA10
2314912350ComplimentaryRefers to the copied DNA strand, or he matching base of another base. (ex. for sequence ATGCT the complimentary strand is TACGA)11
2315132658RibosomeCell organelle that is attached to ER, or floating freely in cytoplasm. Site of protein synthesis (Translation of the Genetic Code).12
2315162420GeneA segment of DNA on a chromosome that codes for a specific trait13
2315166710Messenger RNA (mRNA)RNA molecule that carries copies of instructions for the assembly of amino acids into proteins from DNA to the rest of the cell14
2315170416DeletionChange to a chromosome in which a fragment of the chromosome is removed15
2315173558SubstitutionA mutation in which a nucleotide or a codon in DNA is replaced with a different nucleotide16
2315186478InsertionA mutation involving the addition of one or more nucleotide pairs to a gene.17
2315223984MutagenA chemical or physical agent that interacts with DNA and causes a mutation, or change.18
2315228584Sickle Cell DiseaseA human genetic disease caused by a recessive allele that results in the substitution of a single amino acid in the hemoglobin protein; characterized by deformed red blood cells that can lead to numerous symptoms.19
2315240888Genetic EngineeringA technology in which the genome of a living cell is modified for medical or industrial use.20
2315253867Finger Printing (DNA)Identifies the unique patterns in an individual's DNA, does not involve fingerprints.21
2315329192Clonea group of genetically identical cells or organisms derived from a single cell or individual by some kind of asexual reproduction22

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