5 Written questions
5 Matching questions
- signal-recognition particle (SRP)
- TATA box
- a An enzymatic RNA molecule that catalyzes reactions during RNA splicing.
- b across ex:transcription
- c A protein-RNA complex that recognizes a signal peptide as it emerges from the ribosome.
- d A promoter DNA sequence crucial in forming the transcription initiation complex.
- e In prokaryotes, a special sequence of nucleotides in DNA that marks the end of a gene. It signals RNA polymerase to release the newly made RNA molecule, which then departs from the gene.
5 Multiple choice questions
- 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.
- A region of a DNA molecule that is transcribed into an RNA molecule.
- 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.
- 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
- The DNA strand that provides the template for ordering the sequence of nucleotides in an RNA transcript.
5 True/False questions
promoter → A specific nucleotide sequence in DNA that binds RNA polymerase and indicates where to start transcribing RNA
-script → A three-nucleotide sequence of DNA or mRNA that specifies a particular amino acid or termination signal; the basic unit of the genetic code.
frameshift mutation → A change in a gene at a single nucleotide pair
messenger RNA (mRNA) → 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.
mutagen → A rare change in the DNA of a gene, ultimately creating genetic diversity.