2024-08-20T17:06:41+03:00[Europe/Moscow] en true Chromosomes, Histones, Double helix, Purines, Pyrimidines, DNA polymerase, Chromatid, Centromere, Helicase, Anticodon, Transcription, Translation, Rhodopsin, Codon, Anticodon, Triplet, Mutation, Point mutation, Substitution, Deletion, Insertion, Frameshift, Missense mutation, DNA fingerprint, Polymerase chain reaction, Fragmentation, Gel electrophoresis, Probe labeling, Detection flashcards

DNA

gr11 DNA

  • Chromosomes
    made up of DNA wound around proteins called histones
  • Histones
    proteins
  • Double helix
    describes the twisted shape of DNA
  • Purines
    adenine and gamine
  • Pyrimidines
    thymine and cytosine
  • DNA polymerase
    catalyzes DNA replication
  • Chromatid
    daughter DNA strand
  • Centromere
    holds together identical chromatids
  • Helicase
    enzyme that brakes hydrogen bonds
  • Anticodon
    determines which amino acid will be carried by tRNA
  • Transcription
    process of generating a MRNA from DNA for protein synthesis
  • Translation
    use of templet to build protein molecule
  • Rhodopsin
    light sensitive proteins in the eye
  • Codon
    sequence of three mRNA bases that code for a specific amino acid
  • Anticodon
    sequence of three tRNA bases that are complimentary to a codon
  • Triplet
    sequence of three DNA bases that codes for a specific amino acid
  • Mutation
    change in nucleotide sequence of DNA
  • Point mutation
    mutation that involves only one or two nucleotides
  • Substitution
    the least serious mutation where one nucleotide is replaced by a different one
  • Deletion
    one nucleotide is removed
  • Insertion
    extra nucleotide pairs are added
  • Frameshift
    when deletion and insertion mutations alter a cell
  • Missense mutation
    mutation affecting shape or function
  • DNA fingerprint
    unique pattern of everyone's DNA
  • Polymerase chain reaction
    making copies of DNA segments
  • Fragmentation
    restriction enzymes are used to cut DNA into smaller pieces
  • Gel electrophoresis
    technology used to determine length and molecular weight of DNA molecule
  • Probe labeling
    incubated with radiation so that DNA nucleotides tagged with radioactive probe can be seen through autoradiography
  • Detection
    correlating probes with nucleotides