What genetic material do we inherit characteristics from our parents through?
DNA (Deoxyribonucleic Acid)
What is DNA?
Chemical that contains all the information needed to make an organism.
What is a chromosome?
Long strand of DNA, which contains many genes.
How many chromosomes do humans have?
46
What is a gene?
Section of DNA that contains the information for a characteristic.
How is genetic material inherited?
Fertilisation (egg & sperm 23 chromosomes each)
What is the term used for differences in characteristics within a species?
Variation
What is the term for organisms that have lots of characteristics in common, and can mate to produce fertile offspring.
Species
What is inherited variation?
Variation from the characteristics people have inherited from their parents
What is the term used for variations caused y surroundings e.g. diet or lifestyle.
Environmental variation
What is evolution?
Development of a species over time.
The term used for the remains of plants and animals that have turned to stone.
Fossil
Process by which the organisms with the characteristics that are most suited to the environment survive and reproduce, passing on their genes.
natural selection
A species in the UK that was evidence for natural selection.
Peppered moth
The term used when no more individuals of a species are left anywhere in the world.
Extinction
Give one example for the destruction of habitat that can cause the extinction of a species
deforestation
