| Species | Organisms capable of interbreeding and producing fertile offspring | 
    
      | Heredity | The passing on of traits from parent to offspring by means of genes | 
    
      | Gene Expression | The process of using the information on the gene to make a protein | 
    
      | Gene | A unit of DNA which codes for the production of a specific protein | 
    
      | DNA profiling | Examining DNA / for a pattern or band / to compare OR A method of making a unique pattern of bands from the DNA of a person(, which can then be used to distinguish that persons DNA from other DNA) | 
    
      | Coding DNA | That part of the chromosome which carries the information to make a protein | 
    
      | Non-coding DNA | That part of the chromosome which doesn’t carry the information to make a protein | 
    
      | Genetic screening | Testing (people) for the presence of a (specific) gene or to establish presence or absence of gene(s) | 
    
      | Transcription | The process of producing mRNA using DNA as a template | 
    
      | Translation | The process of making a protein using the mRNA code as a template | 
    
      | Gamete | A haploid sex cell which is capable of fusion | 
    
      | Fertilisation | The fusion of 2 (haploid) gametes to form a (diploid) zygote | 
    
      | Allele | An alternative form of a gene | 
    
      | Homozygous | Has identical alleles (for a trait) | 
    
      | Heterozygous | Has different alleles (for a trait) | 
    
      | Genotype | The genetic make-up of an individual | 
    
      | Phenotype | Physical appearance of an organism | 
    
      | Dominance | One allele masks the expression of the other | 
    
      | Recessive | Allele whose expression is masked by dominant allele | 
    
      | Incomplete Dominance | Neither allele masks the expression of the other | 
    
      | Variation | Difference between members of species or population | 
    
      | Mutation | Change in the genetic make up | 
    
      | Genetic Engineering | Manipulation or alternation of genes | 
    
      | Evolution | (Inheritable) change within a population (or species) / in response to change in the environment / by natural selection / overtime |