Natural Selection Guided reading
1: Who was Charles Darwin? What is he famous for?
Charles Darwin was the first scientist to give a mechanism that explains how evolution can occur.
2: What is evolution?
Any changes to a gene pool is evolution.
3: What is the gene pool? What are alleles?
Combination of all genes in a population. Alleles are different varieties of genes.
3: What is natural selection? What does it mean to have high “fitness”?
Natural selection is when you live or die based on the appearance you have. High fitness means you're able to survive and pass genes on.
4: How do we get new characteristics in organisms?
Mutation is how we get new characteristics
5: How else do we get genetic variability (variety) in organisms?
Reproduction is also how we get genetic variety.
6: Explain the story of the Peppered Moth. How is this an example of natural selection?
The Peppered Moths have 2 different varieties: dark and light. Light shows the example of natural selection, because they were able to camouflage and was able to survive, therefore having a higher fitness. During the industrial revolution, the coal plants caused the environment to become darker. The coal dust make the trees darker, the lighter moths were the ones that were becoming preyed on, changing the gene pool.
7: What is the equation for Hardy-Weinberg Equilibrium?
The equation for Hardy-Weinberg equation is p^2+2pq+q^2=1
8: What are adaptations?
Process that the organisms are selected for.
9: What is the best definition of natural selection? (explain.)
Differential reproductive success, we are each made different allowing us to have high fitness, leading to adaptations.
Charles Darwin was the first scientist to give a mechanism that explains how evolution can occur.
2: What is evolution?
Any changes to a gene pool is evolution.
3: What is the gene pool? What are alleles?
Combination of all genes in a population. Alleles are different varieties of genes.
3: What is natural selection? What does it mean to have high “fitness”?
Natural selection is when you live or die based on the appearance you have. High fitness means you're able to survive and pass genes on.
4: How do we get new characteristics in organisms?
Mutation is how we get new characteristics
5: How else do we get genetic variability (variety) in organisms?
Reproduction is also how we get genetic variety.
6: Explain the story of the Peppered Moth. How is this an example of natural selection?
The Peppered Moths have 2 different varieties: dark and light. Light shows the example of natural selection, because they were able to camouflage and was able to survive, therefore having a higher fitness. During the industrial revolution, the coal plants caused the environment to become darker. The coal dust make the trees darker, the lighter moths were the ones that were becoming preyed on, changing the gene pool.
7: What is the equation for Hardy-Weinberg Equilibrium?
The equation for Hardy-Weinberg equation is p^2+2pq+q^2=1
8: What are adaptations?
Process that the organisms are selected for.
9: What is the best definition of natural selection? (explain.)
Differential reproductive success, we are each made different allowing us to have high fitness, leading to adaptations.