Difference between revisions of "Selective Breeding"
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: [[Selective Breeding]] is what has led to the features of all [[Domesticated Plant|cultivated plants]] and many [[Domesticated Animal|domesticated animals]]. | : [[Selective Breeding]] is what has led to the features of all [[Domesticated Plant|cultivated plants]] and many [[Domesticated Animal|domesticated animals]]. | ||
: [[Selective Breeding]] causes [[evolution]] of a [[population]]. | : [[Selective Breeding]] causes [[evolution]] of a [[population]]. | ||
| − | : [[Selective Breeding]] works by selecting individuals in a [[species]] with desirable characteristics and [[breed]]ing them with one another. It may also involve killing individuals with undesirable characteristics in order to prevent them from [[Reproduction|reproducing]]. | + | : [[Selective Breeding]] works by '''selecting''' individuals in a [[species]] with desirable characteristics and '''[[breed]]ing''' them with one another. It may also involve killing individuals with undesirable characteristics in order to prevent them from [[Reproduction|reproducing]]. |
| + | : Over many [[generation]]s '''selective breeding''' can cause significant changes to a [[population]]. | ||
| + | Individuals may be '''selected''' for a number of reasons: | ||
| + | *A good temperament - [[Animal]]s that are calm and not aggressive. | ||
| + | *A high yield - Individuals that produce a large amount of a desired product, eg milk, wool, fruit. | ||
| + | *Appearance - Individuals that are aesthetically pleasing, eg flowers, pets. | ||
| + | *Resistant to [[Disease]] - Individuals that are not affected by certain [[disease]]s. | ||
Revision as of 21:06, 20 November 2018
Key Stage 4
Meaning
Selective Breeding is a process in which individuals of a species are chosen by humans for reproduction to pass on certain characteristics to their offspring.
About Selective Breeding
- Selective Breeding is what has led to the features of all cultivated plants and many domesticated animals.
- Selective Breeding causes evolution of a population.
- Selective Breeding works by selecting individuals in a species with desirable characteristics and breeding them with one another. It may also involve killing individuals with undesirable characteristics in order to prevent them from reproducing.
- Over many generations selective breeding can cause significant changes to a population.
Individuals may be selected for a number of reasons:
- A good temperament - Animals that are calm and not aggressive.
- A high yield - Individuals that produce a large amount of a desired product, eg milk, wool, fruit.
- Appearance - Individuals that are aesthetically pleasing, eg flowers, pets.
- Resistant to Disease - Individuals that are not affected by certain diseases.