大象传媒

Genetic inheritanceCharacteristics

Our genes are inherited from our parents, and the different combinations of these genes make us unique. Genetic inheritance controls the characteristics of all living things.

Part of ScienceInheritance

Characteristics

Variation

Every individual in the human population has different characteristics such as eye colour, height and body mass. Plants of the same species or type can also differ in height, flower colour or leaf length. These differences are called variation.

The version of a characteristic shown by an individual is called its phenotype.

Organisms that carry out sexual reproduction are able to combine different forms of genes from two parents, which increases in their offspring.

A is an inherited characteristic. The phenotype of every individual is due to the genes they inherited from their parents.

Examples

Characteristic: eye colour

Close up of two faces: one with blue eyes and one with brown eyes.
The variety of heights allowed with phenotypes in adults - 3 adults.  The first is 1.5 m tall, the second 1.7 m and the third 1.9 m.