Why do you selectively breed animals and plants?

Answer 1

It's pretty obvious...

Selective breeding supports Darwins theory because, we adapt to our environments and believe whoever is compatible with breeding will pass on the trait, even if that means outside their own species.

Answer 2

To add or "collect" the best traits from parent species to be included into a new generation of offspring; similar to the process of "natural selection", but speeded up.

For example, if a plant breeder was looking to breed a flower with a long stem over 75cm, what he would do is to go through all the plants in the field or nursery - any of those having a stem shorter than 75cm would be removed (the process is called "roging" as in roge) and not allowed to cross pollinate with those having stems over 75cm.

Genetic probability would ensure that a high percentage of the offspring of these plants would be over 75cm. The next season he would do the same thing and remove all the plants under 75cm; again there would be fewer plants to cross with.

After doing this for a number of generations the genetic trait for all short plants should be almost removed from the parent population.

Of course they normally would do this process for a number of desired traits all at the same time. E.g. over 75cm with red flowers and no thorns.

Answer 3

Look at the dog in general and and some of the miniature breeds in particular, all artificially selected in less than a hundred years in some cases. The phenotype, morphology and behavior, sculpted by those with some foal in mind and control of breeding; the environmental analogue. The environment can do this more slowly and blindly over many tears to earth's organisms. It is the same exact physical process; one directed, goal oriented, and progressive. The other, natural selection, has no goals, no direction and is not progressive, but it still has the change over time in populations of organisms.

Answer 4

Selective breeding is done to create offspring with specific desirable traits, such as higher yield, disease resistance, or certain physical characteristics. This process allows for the improvement of species for human benefit, such as in agriculture or companionship.

Answer 5

It shows that breeding animals with certain characteristics will change the way that the offspring fits to its environment.

Answer 6

why do we make selectively breed happen