Definitions of Selections:
What type of selection favours an increase or decrease in a trait from the population average?
Directional Selection!
Directional selection is a type of what?
It's a type of Natural Selection!
Which traits are favoured in stabilizing selection?
Average or middle traits
How many variations of a trait are favoured in disruptive selection?
Two or more variation of traits!
Natural selection favours helpful traits.
True!
What type of selection favours the average or middle trait?
Stabilizing Selection!
What kind of trait is favoured in directional selection?
A trait above or below the average!
What happens to variation in a population during stabilizing selection? Increase or decrease?
It decreases.
What can happen to a population when disruptive selection continues over time?
The population may split into distinct groups.
Stabilizing selection increases variation in a population.
False, because stabilizing selection reduces variation in a population.
What type of selection favours two or more extreme traits instead of the average?
Disruptive Selection!
What happens to the population when directional selection occurs?
The population changes over time.
What happens to extreme traits during stabilizing selection?
They become less common.
What happens to the average trait in the population?
It becomes less common!
Directional selection is a type of natural selection.
True, ofc!
What process allows helpful traits to become more common over time?
Natural Selection!
What is favoured during directional selection (one extreme trait, the average trait, or two extreme traits)?
One extreme trait.
What kind of population does stabilizing selection create?
A more consistent population.
What kinds of traits are favoured in disruptive selection?
Extreme Traits.
Disruptive selection favours the average trait.
False, disruptive selection is a selection that favours two or more variations of a trait that differ from the current population average.
Which type of selection reduces variation in a population?
Stabilizing Selection!
What happens to a favoured trait over time during directional selection?
Their population grows and becomes more common in the environment.
Why does stabilizing selection make a population more consistent?
Because average traits are favoured while extreme traits become less common.
Are average traits favoured in disruptive selection, Yes or No?
Disruptive selection makes a population more consistent.
False, stabilizing selection makes a population more consistent and reduces the variation.