Phet Natural Selection

Natural Selection Lab

Part 1 & 2

With Phet Simulator - https://phet.colorado.edu/en/simulations/natural-selection

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Multiple Choice

Click Add a Mate and let the program run. What happens?

• It just keeps going

• It stops running

• It crashes

• The bunnies take over the world

​Check all boxes

Click Brown fur Dominant

Click Add a Mate

Run for 5 generations

Repeat

Multiple Choice

Which phenotype population is in the hundreds after 5 generations?

• White

• Brown

• It changes

• can not be determined

Multiple Choice

Look at this example pedigree. What had to happen for a brown bunny to be born?

• A mutation

• A brown bunny just appears

• The genotype of white bunnies away have a dominant gene

• It's a glitch in the Matrix

​Check all boxes

Click Brown fur Recessive

Click Add a Mate

Run for 5 generations

Repeat

Multiple Choice

Which phenotype population is most abundant after 5 generations?

• White

• Brown

• It changes

• can not be determined

Multiple Select

Which are the most common genotypes for white fur? Choose one or more.

• FF

• Ff

• ff

• Cannot be determined

Multiple Select

Look at the highlighted brown rabbit's parents are both have white fur, choose one or more of the following are TRUE about the parents.

• Mutants

• Carriers

• Homozygous

• Heterozygous

1. ​Check all boxes

2. Click Brown fur Dominant

3. Click Snowflake Icon to change to winter

4. Click Add a Mate

5. Run for 3 generations

6. Click Pause

7. Go to next question

Drag and Drop

The most common phenotype is ​

Placeholder

and the most common genotype is ​

Placeholder

and ​

Placeholder

is the least common genotype.

Drag these tiles and drop them in the correct blank above

White

ff

FF

Brown

Ff

1. Click the Sun icon to change to Summer

2. Click the box next to Wolves

3. Click play

4. Run until Generation 7 starts

Multiple Choice

What happen to the after the environment turned to winter?

• The white bunny population decreased the brown trait disappeared completely

• The brown bunny population decreased the white trait disappeared completely

• The white bunny population decreased and the brown fur trait increased

• The brown bunny population decreased and the white bunnies population stays the same.

Drag and Drop

The most common phenotype is ​

Placeholder

and the most common genotype is ​

Placeholder

and ​ ​

Placeholder

and ​

Placeholder

are the least common genotypes.

Drag these tiles and drop them in the correct blank above

Brown

Ff

ff

FF

White

1. Click the snowflake to change back to winter

2. Click play

Open Ended

Describe the phenotypes and genotypes and scientific explanation for the results. This questionis half the grade