Where humans breed plants and animals for particular genetic characteristics.
1 of 7
What are the stages of selective breeding?
Decide what characteristics are important enough to select. Choose parents that show these characteristics and breed them together. Chose the best offspring with the desired characteristics. Repeat the process.
2 of 7
Desired characteristics in plants.
Disease resistance in food crops. Wheat plants that produce lots of grain. Large or unusual flowers.
3 of 7
Desired characteristics in animals.
Animals that produce lots of milk/meat. Chickens that lay large eggs. Domestic dogs that have gentle nature.
4 of 7
Why are the new varieties economically important?
They may provide more or better quality food or allow farmers to feed more people.
5 of 7
What are benefits of selective breeding?
New varieties may be economically important, by producing/more better food. Animals can be collected that cannot cause harm.
6 of 7
Risks of selective breeding?
Reduced genetic variation - diseases can be extremely destructive. Rare disease genes can be unknowingly selected. Inbreeding can happen due to reduced population can lead to physical problems.
7 of 7
Other cards in this set
Card 2
Front
What are the stages of selective breeding?
Back
Decide what characteristics are important enough to select. Choose parents that show these characteristics and breed them together. Chose the best offspring with the desired characteristics. Repeat the process.
Comments
No comments have yet been made