Selective Breeding

Selective breeding is...

• a process to create an organism with desired traits from parents with those desired traits

• natural method of producing offspring with desired traits

• creating a new species

• making organisms reproduce during times of stress

One problem with selective breeding is

• creating a new species

• gene variety is lost

• new food sources

Which is another term for selective breeding?

• Artificial selection
• Natural Selection
• Intelligent selection

Problems with selective breeding include

• Better animals

• Increased meat production

• Animals can have bad health problems

• more diversity

Which is NOT a result of selective breeding?

• Large seedless watermelons that consumer demand

• Bright oranges that are all about the same size

• An insect that matches the color of the environment

• A dog that has been bred to have short hair

The purpose of selective breeding is to

• get bigger animals

• get smaller animals

• create animals with desirable traits

• create animals with bad traits

How can farmers best use selective breeding to increase apple production?

• By limiting the number of trees growing so they can have more space.

• By choosing trees that are the largest in size.

• By increasing the amount of water and fertilizer the trees receive.

• By choosing trees that consistently have the most apples.

Problems with animals that are selectively bred include:

• Being more disease resistant

• Producing more meat

• Being more likely to suffer from genetic disease

• Being more genetically diverse

The evolution of dogs from wolves is due to:

• Natural Selection
• Sexual Selection
• Artificial Selection
• Vestigial Structures

Evidence shows that the wolf is the ancestor to all of the breeds of dogs shown below. How did this variation arise in a relatively short period of time?

• A.  Genetic manipulation
• Natural selection
• Random chance
• Selective breeding