Why do mutations appear more often with selective breeding?

Why do mutations appear more often with selective breeding?

A - They are selected for a desirable trait
B - Genetic diversity is increased
C - Desirable traits are only beneficial if mutations occur too
D - Genetic diversity is decreased
E - They will eventually disappear over time so they are not a problem


Answer: D - Genetic diversity is decreased
Genetic diversity is greatly decreased through the inbreeding process (breeding of closing related species) which mutations that are normally selected against will be selected.

Our modern corn was created through artificial selection from the ancestral plant

Our modern corn was created through artificial selection from the ancestral plant

A - Alfalfa
B - Chihuahua
C - Wheat
D - Teosinte


Answer: D - Teosinte

What is the main difference between natural selection and artificial selection?

What is the main difference between natural selection and artificial selection?

A - Individuals choose to adapt in natural selection but are forced to adapt in artificial selection
B - Artificial selection is a deliberate act by humans, while natural selection is a naturally occurring process
C - Artificial selection is a naturally occurring process, while natural selection is a deliberate act by humans
D - They are the same process and the names are interchangeable
E - Artificial selection can only occur after natural selection has occurred,. while natural selection can occur at any time


Answer: B - Artificial selection is a deliberate act by humans, while natural selection is a naturally occurring process

Which is NOT a trait that might be selected for through artificial selection?

Which is NOT a trait that might be selected for through artificial selection?

A - Decreased disease resistance
B - Accelerated growth
C - Faster running speeds
D - Increased growth rate


Answer: A - Decreased disease resistance
It is a breeding for desired traits only.