5 Written Questions
5 Matching Questions
- Coding strand
- Template strand
- Stop codon
- Neutral mutation
- a The DNA strand encompassing a gene that carries the sequence identical to the message sequence.
- b The DNA strand that is used for assembly of mRNA by RNA polymerase using base-pairing rules. Complementary to the message sequence.
- c A mutation that even though it may change a coding sequence exerts no harmful or beneficial effects.
- d Eukaryotic organisms or cell with more than two sets of chromosomes.
- e One of three triplet codes (UGA, UAG or UAA) that causes the termination of translation by the ribosome.
5 Multiple Choice Questions
- A length of messenger RNA carrying multiple ribosomes at different stages of protein synthesis.
- Genes that control the development of polarity within a body segment during development.
- Structural change to genetic material - either to a gene or to a chromosome.
- Structure formed on the centromere that attaches the chromosomes to the spindle fibres during mitosis and meiosis.
- Eukaryotic cell or organism that has two identical alleles for a specific gene.
5 True/False Questions
Central dogma → The fundamental relationship between DNA, RNA and protein first outlined by Francis Crick in 1958.
Apoptosis → Programmed cell death. An orderly process by which cells self-destruct in an orderly fashion after a certain number of cell divisions, or if they cannot repair DNA damage.
DNA mutation → A change to the DNA structure altering the sequence of bases.
transfer RNA → Stage of protein/polypeptide synthesis in which the amino acids are assembled at ribosomes according to the genetic code.
Programmed cell death → Gene that can undergo mutations to become an oncogene, which induces tumour formation (cancer).