5 Written questions
5 Matching questions
- a The synthesis of RNA on a DNA template.
- b A mutation involving the addition of one or more nucleotide pairs to a gene.
- c opposite ex: anticodon
- d A chemical or physical agent that interacts with DNA and causes a mutation.
- e 1) A deficiency in a chromosome resulting from the loss of a fragment through breakage. (2) A mutational loss of one or more nucleotide pairs from a gene.
5 Multiple choice questions
- A 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.
- The removal of noncoding portions (introns) of the RNA molecule after initial synthesis.
- The modified end of the 3' end of an mRNA molecule consisting of the addition of some 50 to 250 adenine nucleotides.
- Modification of RNA before it leaves the nucleus, a process unique to eukaryotes.
- A coding region of a eukaryotic gene or expressed region
5 True/False questions
signal-recognition particle (SRP) → A protein-RNA complex that recognizes a signal peptide as it emerges from the ribosome.
P site → One of a ribosome's three binding sites for tRNA during translation. Holds the tRNA carrying the growing polypeptide chain. (P stands for peptidyl tRNA
anticodon → A specialized base triplet at one end of a tRNA molecule that recognizes a particular complementary codon on an mRNA molecule.
trans- → opposite ex: anticodon
-script → within ex: intron