quiz 10
Terms
undefined, object
copy deck
- Translation
- The synthesis of protein (polypeptide). Takes place on ribosomes, using the information encoded in mRNA
- Translocation
- A rare mutational event that moves a portion of a chormosome to a new location, generally on a non-homologous chromosome
- Release Factor
- Protein synthesis is terminated by release factors that read stop codons.
- Inversion
- A rare 180 degree reversal of the order of genes within a segment of a chromosome
- Spontaneous Mutation
- A genetic change casued by internal cellular mechanismsm such as error in DNA replication
- Transcription
- The synthesis of RNA using one strand of DNA as a template
- Silent Mutation
- A change in gene sequence that, due to the redundancy of the genetic code, has no effect on the amino acid produced, and no effect on the protein phenotype
- Codon
- The nucleotides in mRNA that direct the placement of a paticular amino acid into a polypeptide chain
- Conditional Mutation
- Mutations that show characteristic phenotype only under certain environmental conditions such as temparature
- Polypeptide
- A large molecule made up of many amino acids joined by peptide linkages. Large polypeptides are called proteins
- RNA Polymerase
- An enzyme that catalyzes the formation of RNA from a DNA template
- Duplication
- A mutation in which a segment of a chormosome is duplicated , often by the attachment of a segment lost from it's homolog
- mRNA
- A transcription of one of the stands of DNA; carries information (as a sequence of codons) for the synthesis of one or more proteins
- Deletion
- A mutation resulting from the loss of a continous segment of a gene or chromosome. Such mutations never revert to wild type
- tRNA
- A family of double standed RNA molecules. Each RNA carries a specific amino acid and anticodon that will pair with the complimentary codon in mRNA during translation
- Induced Mutation
- A mutation resulting from treatment with a chemical or other agent
- Mutation
- A detectable , heritable change in the genetic material not cause by recombination