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14 Cards in this Set

  • Front
  • Back
dna replication
process in which chromosomal dna is copied before mitosis or meiosis
double helix
shape of a dna molecule formed when two twisted dna strands are coiled into a springlike structure and held together by hydrogen bonds between the bases
nitrogen base
carbon ring structure found in dna or rna that contains one or more atoms of nitrogen
set of three nitogen bases that represents an amino acid
messenger rna
rna that transports information from dna in the nucleus to the cell's cytoplasm
ribosomal rna
rna that makes up the ribosomes
process in the cell nucleus where enzymes make an rna copy of a dna strand
transfer rna
rna that transports aminoo acids to the ribosomes to be assembled into proteins
process of converting information in mrna into a sequence of amino acids in a protein
chromosomal mutations
mutation that occurs at the chromosome level resulting in changes in the gene distribution to gametes during meiosis
frameshift mutation
mutation that occurs when a single base is added or deleted from dna
any agent that can cause a change in dna
any change or random error in a dna sequence
point mutation
mutation in a dna sequence