5 Written questions
5 Matching questions
- Crossing over
- Ribosomal RNA
- transfer RNA
- a A sequence of three bases that codes for a single amino acid according to the genetic code.
- b Where non-sister chromatids exchange alleles during prophase I of meiosis.
- c Three types of RNA that form an important structural and functional role within the ribosome.
- d A term applied to the genetic code that describes the fact that more than one triplet code is used to code for all amino acids other than tryptophan and methionine.
- e A short length of about 100 RNA nucleotides that adopts a clover leaf structure and carries an amino acid to the ribosome to be incorporated into a growing polypeptide chain.
5 Multiple choice questions
- Alleles present within cells of an individual, for a particular trait/characteristic.
- Observable characteristics of an organism.
- Eukaryotic cell or organism that has two identical alleles for a specific gene.
- Groups of homeobox genes. More complex organisms have more such groups, probably due to a mutation that duplicated them.
- A change in DNA sequence involving the introduction or loss of 1- 1000s of bases.
5 True/False questions
Stutter mutation → A mutation that even though it may change a coding sequence exerts no harmful or beneficial effects.
Silent mutation → A change in DNA sequence within a gene that does not lead to a change in the amino acid sequence due to the degeneracy of the genetic code.
Nonsense mutation → A change in DNA sequence that introduces a premature stop codon within a DNA coding sequence.
Locus → Specific position on a chromosome, occupied by a specific gene.
Sexual reproduction → A mutation that even though it may change a coding sequence exerts no harmful or beneficial effects.