5 Written questions
5 Matching questions
- frameshift mutation
- TATA box
- poly-A tail
- missense mutation
- a 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.
- b 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.
- c A promoter DNA sequence crucial in forming the transcription initiation complex.
- d A coding region of a eukaryotic gene or expressed region
- e The modified end of the 3' end of an mRNA molecule consisting of the addition of some 50 to 250 adenine nucleotides.
5 Multiple choice questions
- The synthesis of a polypeptide using the genetic information encoded in an mRNA molecule. There is a change of languagefrom nucleotides to amino acids
- An initial RNA transcript; also called pre-mRNA when transcribed from a protein-coding gene
- A chemical or physical agent that interacts with DNA and causes a mutation.
- A three-nucleotide sequence of DNA or mRNA that specifies a particular amino acid or termination signal; the basic unit of the genetic code.
- within ex: intron
5 True/False questions
one gene-one polypeptide hypothesis → An enzyme that links together the growing chain of ribonucleotides during transcription.
transcription → The synthesis of RNA on a DNA template.
anti- → within ex: intron
template strand → The DNA strand that provides the template for ordering the sequence of nucleotides in an RNA transcript.
signal-recognition particle (SRP) → Modification of RNA before it leaves the nucleus, a process unique to eukaryotes.