selective breeding

?
what is selective breeding?
where humans breed plant and animals with desired characteristic (to produce more of them)
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what are the 3 main stages of selective breeding?
1)parents with desired characteristic are chosen from a mixed population of variants and are bred
2)offspring with desired characteristic are chosen and bred together
3)this continues for many generations until all offspring have the desired characteristi
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what are the disadvantages of selective breeding?
-can lead to inbreeding where some breeds particularly prone to disease or inherited defects
-reduces variation meaning the whole population will have the same strengths and weaknesses
-this means infectious diseases are more likely to spread and wipe out
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what characteristics might be desirable (to selectively breed for)?
-disease resistance in food crops
-animals that produce more meat or milk
-domestic animals with a gentle nature
-large or unusual flowers
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what is another name for selective breeding?
artificial selection (instead of natural selection)
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Other cards in this set

Card 2

Front

what are the 3 main stages of selective breeding?

Back

1)parents with desired characteristic are chosen from a mixed population of variants and are bred
2)offspring with desired characteristic are chosen and bred together
3)this continues for many generations until all offspring have the desired characteristi

Card 3

Front

what are the disadvantages of selective breeding?

Back

Preview of the front of card 3

Card 4

Front

what characteristics might be desirable (to selectively breed for)?

Back

Preview of the front of card 4

Card 5

Front

what is another name for selective breeding?

Back

Preview of the front of card 5

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