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15 Cards in this Set

  • Front
  • Back
gene
segment of DNA that is located in a chromosome and that codes for a specific hereditary trait
DNA
decoy ribonucleic acid , the material that contains the information that determines inherited characteristics
nucleotide
in a nucleic acid chin, a subnit that consists of a sugar, a phosphate, and nitrogenous base
purine
a nitrogenous base that has a double ring structure adenine or guanine
pyrimidine
a nitrogenous base that had a single thing structure in DMA either thymine or cytostine
DNA replication
the process of making a copy of dna
DNA helicase
ASB enzyme that unwind the DNS double helix during DNA replication
DNA polymerase
an enzyme that catalyzes the formation of the DNA molecule
RNA
ribonucleic acid a natural polymer that is present in all living cells and that plays a role in protein synthesis
gene expression
the manifestation of the genetic material of an organism in the form of the specific traits
gene expression
the manifestation of the genetic material of an organism in the form of specific traits
transcription
first step of gene expression, certain segments of DNA is copied into RNA by the enzyme polymerase.
translation
final step on the way from DNA to protein. synthesis of protein is directed NY a mRNA template. the info contained in the nucleotide sequence of the mRNA is read as a three letter word (triplets) called condon.
condon
trinucleotide sequence of dna/rna that corresponds to a specific amino acid. the genetic code describes relationships between DNA bases ( a+t, c+ g) in a gene and the corresponding protein sequence that it encodes
mutation
change in DNA, when something goes wrong in the DNA process