5 Written questions
5 Matching questions
- Stutter mutation
- a Pair of synapsed (joined) homologous chromosomes during prophase and metaphase of meiosis I.
- b Molecule (nucleotide derivative) found in all living cells and involved in energy transfer. When it is hydrolysed energy is released.
- c Stage of protein/polypeptide synthesis in which the amino acids are assembled at ribosomes according to the genetic code.
- d Causes an expansion or contraction of a run of identical codons within a gene affecting the length of a run of identical amino acids in the polypeptide.
- e Alleles present within cells of an individual, for a particular trait/characteristic.
5 Multiple choice questions
- Structure formed on the centromere that attaches the chromosomes to the spindle fibres during mitosis and meiosis.
- All the genetic information within an organism/cell.
- Observable characteristics of an organism.
- The fundamental relationship between DNA, RNA and protein first outlined by Francis Crick in 1958.
- Refers to the location of cells with respect to the head end (anterior) or tail end (posterior) of the body.
5 True/False questions
Operon → A stretch of DNA consisting of two or more genes that are transcribed together and coregulated.
Genetic code → Structure formed on the centromere that attaches the chromosomes to the spindle fibres during mitosis and meiosis.
Homozygous → Eukaryotic cell or organism that has two identical alleles for a specific gene.
Monogenic → A substance that controls the pattern of tissue development. It is produced in a particular region of a developing organism. It diffuses to other cells, which then enter a specific developmental pathway.
Meiosis → Type of nuclear division. A reduction division. The chromosome number is halved. It involves two divisions. It produces cells that are genetically different from each other and from the parent cell.