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DNA Flashcards

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2414127171nucleotidesBasic units of DNA molecule, composed of a sugar(ribose/deoxribose), a phosphate, and a nitrogenous base ( guanine, adenine, thymine, cytosine, uracil)0
2414161216nucleic acidsDNA and RNA1
2414161217polymerA long molecule consisting of many similar or identical monomers linked together.2
2414161218monomerA simple compound whose molecules can join together to form polymers3
2414161458nucleusControl center of the cell4
2414161708nitrogenous baseA molecule found in DNA and RNA that encodes genetic information in cells.5
2414161709phosphate groupA molecule in the backbone of DNA and RNA that links adjoining bases6
2414162447deoxyribose/ribosetypes of sugar found in DNA/RNA7
2414162448double helixThe form of native DNA, referring to its two adjacent polynucleotide strands wound into a spiral shape.8
2414162449thymineA component of nucleic acid that carries hereditary information in DNA in cells. Chemically, it is a pyrimidine base.9
2414162633adenine(biochemistry) purine base found in DNA and RNA10
2414162634cytosineA component of nucleic acids that carries hereditary information in DNA and RNA in cells. Chemically, it is a pyrimidine base.11
2414162635guanineA component of nucleic acids that carries hereditary information in DNA and RNA in cells. Chemically, it is a purine base.12
2414162766urasilNitrogenous base that appears only in RNA instead of thymine13
2414162767purinesAdenine and Guanine14
2414163063pyrimidinescytocine, thymine, and uracil15
2414163064helicaseAn enzyme that untwists the double helix of DNA at the replication forks.16
2414163065polymeraseA method of producing thousands of copies of DNA segment using the enzyme DNA polymerase17
2414163100codonA three-nucleotide sequence of DNA or mRNA that specifies a particular amino acid or termination signal; the basic unit of the genetic code.18
2414163237amino acidBuilding blocks of protein19
2414163252transcribedLanguage of DNA is ____ to language of RNA (process)20
2414163557translation(genetics) the process whereby genetic information coded in messenger RNA directs the formation of a specific protein at a ribosome in the cytoplasm21
2414163558ribosomesCytoplasmic organelles at which proteins are synthesized.22
2414163591cytoplasmA jellylike fluid inside the cell in which the organelles are suspended23
2414163849mRNA, tRNA, rRNAmessenger RNA, transfer RNA, ribosomal RNA24
2414163858messenger, transfer, ribosomal3 types of RNA25
2414164393anticodongroup of three bases on a tRNA molecule that are complementary to an mRNA codon26
2414164917initiation, elongation, terminationthree stages of transcription27
2414164918mutagenA chemical or physical agent that interacts with DNA and causes a mutation.28
2414165218substitutions, deletions, insertionsmanipulation of DNA that causes mutations29
2414165219silent mutationsIs when a mutation is there, but does not change the normal gene function. It has no effect on the amino acid produced by a codon because of redundancy in the genetic code.30
2414165447frameshift mutationA mutation occurring when the number of nucleotides inserted or deleted is not a multiple of three, resulting in the improper grouping of the following nucleotides into codons.31
2420172803polypeptideA long chain of amino acids32

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