5 Written questions
5 Matching questions
- Paternal chromosome
- a Refers to the location of cells with respect to the head end (anterior) or tail end (posterior) of the body.
- b Large polymer molecule made of many amino acids joined by peptide bonds.
- c Member of a pair of homologous chromosomes that originally came from the male gamete.
- d Alleles present within cells of an individual, for a particular trait/characteristic.
- e Stage of protein/polypeptide synthesis in which the amino acids are assembled at ribosomes according to the genetic code.
5 Multiple choice questions
- Characteristic in which the allele responsible is only expressed in the phenotype if there is no dominant allele present.
- A change in DNA sequence that introduces a premature stop codon within a DNA coding sequence.
- Structural change to genetic material - either to a gene or to a chromosome.
- Eukaryotic cell or organism that has two different alleles for a specific gene.
- Characteristic in which the allele responsible is expressed in the phenotype even in those with heterozygous genotypes.
5 True/False questions
Initiator codon → The way in which the 64 possible base triplets map onto the 20 amino acids that are used in polypeptide chains.
Polyploid → Large polymer molecule made of many amino acids joined by peptide bonds.
Stop codon → A stretch of DNA consisting of two or more genes that are transcribed together and coregulated.
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.
Genetic reassortment → Variation introduced due to the random orientation and subsequent segregation of maternal and paternal chromosomes during meiosis 1, or sister chromatids at meiosis 2.