B13 Flashcards
What is variation
Variation is the differences in the charictoristics in a population
What are some human traits caused by genetics ?
Hair colour
Eye colour
Skin colour
What are some human traits caused by the enviroment?
Scar in result of an accident
Why do identical twins share the same genes
Identical twins were formed from the exact same sperm and egg from their father and mother
What is a mutation
Mutation is a change in DNA code
What is a useful adaption that has taken place ?
In 1922 oyster beds were almost empty , oyster have been whiped out by a destructive disease. Fortunatly a few oyster had a mutation making them emune to the disease, these were the only oysters to survive. By 1940 they were producing more oysters than ever
What is an example of genetic engineering
Genetic engineering can help to allow fruit and veg to have a longer shelf life therefore lowing rate of waste food
