5 Written questions
5 Matching questions
- Programmed cell death
- Sexual reproduction
- Segmentation genes
- a Genes that control the development of polarity within a body segment during development.
- b Eukaryotic cell or organism having only one set of chromosomes. Denoted by n.
- c Alternative term for apoptosis.
- d Eukaryotic cell or organism that has two different alleles for a specific gene.
- e Production of new organisms involving fusion of nuclei from male and female gametes, usually from unrelated individuals. Increases genetic variation in the population.
5 Multiple choice questions
- The DNA strand that is used for assembly of mRNA by RNA polymerase using base-pairing rules. Complementary to the message sequence.
- A reference to the fact that normal body cells can only divide a finite number of times, normally about 50 mitotic divisions. In contrast, tumour cells are essentially immortal.
- 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.
- Characteristic in which the allele responsible is expressed in the phenotype even in those with heterozygous genotypes.
- All the genetic information within an organism/cell.
5 True/False questions
Paternal chromosome → Member of a pair of homologous chromosomes that originally came from the male gamete.
Codominant → A characteristic where both alleles contribute to the phenotype.
Stutter mutation → A mutation that even though it may change a coding sequence exerts no harmful or beneficial effects.
Codon → A sequence of three bases that codes for a single amino acid according to the genetic code.
Homozygous → Eukaryotic cell or organism that has two different alleles for a specific gene.