DNA
What does "heritable" mean?
passed down through DNA
No! Populations change over time when some traits are more advantageous than others
What is habitat fragmentation?
What information does the y-axis contain?
fly landings per trial
If two organisms have the same DNA sequence, will the protein they make be the same or different?
the protein will be the same because the DNA sequence determines the amino acids in the protein
What will happen to the frequency of a trait if it helps individuals survive and reproduce?
the frequency will increase; it will become more common over time
How do wildlife corridors help maintain biodiversity?
They allow animals to move between different areas to access resources they need
What does the dot at the top right of the rightmost graph represent?
A trial where flies landed on impala skin about 8 times
Why would an individual organism have a different trait from its parents?
The gene combinations are different; the organism got half its DNA from each parent so it isn't identical to either parent
Which population is more genetically diverse?
Population A: 0.05% of individuals have a unique coat pattern
Population B: 5% of individuals have a unique coat pattern
Population B because a higher percentage have a different coat pattern
How does creating a protected area preserve genetic diversity in a species affected by habitat fragmentation?
The area would not be fragmented, which would prevent small groups from becoming reproductively isolated
What does the graph on the right show about plains zebra skin compared to impala skin?
Flies landed on plains zebras about 1 time per trial. Flies landed on impala skin about 6 times per trial.