Changingthelivingworld 13 1 Bio
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Transcript of Changingthelivingworld 13 1 Bio
By: Hope Flores
Selective Breeding: allowing only those animals with desired characteristics to produce the next generation
Hybridization: crossing dissimilar individuals to bring together the best of both organisms
Inbreeding : the continued breeding of individual with similar characteristics
What is the purpose of selective breeding?-Humans use selective breeding, which takes advantage of naturally occurring genetic variation in plants, animals, and other organisms, to pass desired traits on to the next generation of organisms
Why might breeders try to induce mutation?-Breeders can increase the genetic variation in a population by inducing mutations, which are the ultimate source of genetic variability
Done by humans Take advantage of naturally
occurring genetic variationHybridization Disease resistance of one plant
and food producing in another created a strong mass food producing plant.
Inbreeding Ensures that the characteristics
stay the same in the animals Can cause genetic defect by
bringing together 2 recessive alleles
Variation increases by adding genetic mutations which are the ultimate source of genetic variation
scientist have developed hundreds of useful bacterial strains
Produces “Mutant plants” through polyploidy