Understanding:
• A gene is a heritable factor that consists of a length of DNA and influences a specific trait
• A gene occupies a specific position on a chromosome
DNA is the genetic blueprint which codes for, and determines, the characteristics of an organism
- This includes the physical, behavioural and physiological features of the organism
DNA is packaged and organised into discrete structures called chromosomes
- A gene is a sequence of DNA that encodes for a specific trait (traits may also be influenced by multiple genes)
- The position of a gene on a particular chromosome is called the locus (plural = loci)
Genes and Gene Loci
