- Outcrossing Mating two animals that are unrelated for at least 4 to 6 generations back is called an outcross. …
- Linebreeding Linebreeding involves mating related animals like half-brother/half-sister, cousins, aunt/nephew, and other more distant relationships.
What are the two types of selective breeding?
What are two types of selective breeding and how do they compare?
Inbreeding & Hybridization
. Inbreeding is crossing two individuals that have similar characteristics so that their offspring will have the same qualities. Hybridization is crossing two individuals with different qualities.
What are the 3 advantages of selective breeding?
- It requires no company patent. …
- It allows for higher profit. …
- It can create new varieties of good crops. …
- It does not have any issue of safety. …
- It helps eliminate diseases. …
- It influences the production of food coming from plants in a positive way.
Is selective breeding a good idea?
Selective breeding can
result in better quality products and higher yields in plants and animals
that have been bred for specific characteristics. Many domestic animals and plants are the result of centuries of selective breeding.
Why selective breeding is bad?
Risks of selective breeding:
reduced genetic variation can lead to attack by specific insects or disease
, which could be extremely destructive. rare disease genes can be unknowingly selected as part of a positive trait, leading to problems with specific organisms, eg a high percentage of Dalmatian dogs are deaf.
What are 4 examples of selective breeding?
- cows that produce lots of milk.
- chickens that produce large eggs.
- wheat plants that produce lots of grain.
How do farmers use selective breeding to increase milk?
An example of this can be seen in cows, as they can be bred to produce milk and meat. Farmers selectively breed different types of cows with highly desirable
characteristics
in order to produce the best meat and dairy. This means the farmers can make the most profit.
Which is an example of selective breeding?
3. The text explains that selective breeding involves breeding animals or plants for specific desirable traits. For example,
humans bred different types of dogs to accomplish certain jobs
. Farmers breed chickens for having more meat and laying a greater amount of eggs.
What are the disadvantages of selective breeding?
- reduced genetic variation can lead to attack by specific insects or disease, which could be extremely destructive.
- rare disease genes can be unknowingly selected as part of a positive trait, leading to problems with specific organisms, eg a high percentage of Dalmatian dogs are deaf.
What are the pros and cons of selective breeding?
Selective breeding is an
extremely efficient way to good genetics in certain crops and livestock
. However, if you are concerned about the cons of it, such as a genetic depression or discomfort to animals, the alternatives can be much worse, such as carrying out genetic modification.
Why is GM better than selective breeding?
Genetic modification
is a faster and more efficient way of getting the same results as selective breeding. Improves crop yields or crop quality, which is important in developing countries. This may help reduce hunger around the world. … The plant produces toxins, which would discourage insects from eating the crop.
Who is responsible for selective breeding?
Selective breeding was established as a scientific practice by
Robert Bakewell
during the British Agricultural Revolution in the 18th century. Arguably, his most important breeding program was with sheep. Using native stock, he was able to quickly select for large, yet fine-boned sheep, with long, lustrous wool.
Is selective breeding ethical?
Genetic engineering and selective breeding appear
to violate animal rights
, because they involve manipulating animals for human ends as if the animals were nothing more than human property, rather than treating the animals as being of value in themselves.
What are some positive traits that have come from selective breeding in dogs?
- Lower risk of allergies. …
- Reduced anxiety and stress. …
- Better heart health. …
- Stronger relationships and social skills. …
- Improved mental health.
Is selective breeding the same as GMO?
In selective breeding,
the individuals have to be from the same species
. In GMO the scientists create new combinations of genes. In selective breeding, genes combine on their own. … Various forms of selective breeding have been used since the dawn of human society.
What is another term for selective breeding?
Selective breeding is also known as
artificial selection
.
