5 Written questions
5 Matching questions
- RNA polymerase
- signal-recognition particle (SRP)
- a An enzyme that links together the growing chain of ribonucleotides during transcription.
- b An enzymatic RNA molecule that catalyzes reactions during RNA splicing.
- c A specialized base triplet at one end of a tRNA molecule that recognizes a particular complementary codon on an mRNA molecule.
- d A specific nucleotide sequence in DNA that binds RNA polymerase and indicates where to start transcribing RNA
- e A protein-RNA complex that recognizes a signal peptide as it emerges from the ribosome.
5 Multiple choice questions
- within ex: intron
- The premise that a gene is a segment of DNA that codes for one polypeptide.
- An RNA molecule that functions as an interpreter between nucleic acid and protein language by picking up specific amino acids and recognizing the appropriate codons in the mRNA.
- write ex: transcription
- The synthesis of a polypeptide using the genetic information encoded in an mRNA molecule. There is a change of languagefrom nucleotides to amino acids
5 True/False questions
missense mutation → A mutation that changes an amino acid codon to one of the three stop codons, resulting in a shorter and usually nonfunctional protein
ribosome → A cell organelle constructed in the nucleolus and functioning as the site of protein synthesis in the cytoplasm; consists of rRNA and protein molecules, which make up two subunits.
codon → A coding region of a eukaryotic gene or expressed region
nonsense mutation → The most common type of mutation, a base-pair substitution in which the new codon makes sense in that it still codes for an amino acid.
messenger RNA (mRNA) → A type of RNA, synthesized from DNA, that attaches to ribosomes in the cytoplasm and specifies the primary structure of a protein.