name 2 selective breeding
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Farmers selectively breed different types of cows in order to produce the best meat and dairy products :-
The traditional Highland cow.
Fresian cows have been bred to produce large volumes of milk.
Aberdeen Angus cows have also been bred for their meat.
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Inbreeding
If we want to establish a population of organisms with predictable characteristics we tend to “inbreed”.
Inbreeding is when the animals bred are very close relatives, such as siblings.
Continued inbreeding results in offspring that are very genetically alike.
Linebreeding
Linebreeding is a type of inbreeding.
It involves breeding together more distant relatives, such as cousins.
This reduces the rate at which the breed becomes ‘purebred’, reducing the risk of ill-health that can sometimes be seen with purebred individuals.
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