when you choose two organisms of the same species to mate for a particular purpose. Farmers have been doing this for many years.
For example, let's say a farmer had a small crop of tomatoes
that had a dominant allele for largeness. In this crop all her
grew extra large. By luck she also had another small crop of
tomatoes with a dominant allele for redness.
This crop yielded tomatoes that were very red. This farmer could
then cross each
plant of tomatoes to produce a crop of tomatoes that had BOTH dominant
alleles. Now she would have a crop of tomatoes that grew really
big and were really red. Two characteristic people look
for when buying tomatoes.
breeding in dogs is intentionally mating two dogs in order
to produce a litter of dogs with certain desirable traits.
the picture on the right. This is a picture of a Labradoodle.
This dog was made by mating a Labrador Retriever and a Poodle.
A dog breeder named, Wally Conron,from Australia is said
to be the first to cross the Labrador Retriever and Standard
Poodle. He did this for the Guide Dogs Victoria, in Australia.
He was looking to make a dog that wouldn't shed that much
and would have a gentle, easy to train personality.
can also be produced through selective breeding.
an Appaloosa. This horse is bred for its distinctive coat
are often selectively bred.
it's your turn to create a dog
breed of your own. I mixed a Beagle with a Dalmatian. Beagles
are great with kids and Dalmatians are good running companions.
Use the. Create
a dog link. TO HELP YOU COMPLETE THE ASSIGNMENT IN YOUR
GOOGLE CLASSROOM SELECTIVE BREEDING.
CHECK YOUR COMPREHENSION:
1. A Appaloosa is an example of (selective breeding OR genetic engineering )?
2. Choosing two organisms of the same species to mate to get desirable traits from each is call (mutations OR selective breeding )?