DNA Mutation
What is the change in the DNA sequence called?
Mutation
What is the process that combine genetic material from two parents to produce offspring?
Sexual Reproduction
What is genetic drift?
A random change in allele frequencies in a population.
What is microevolution?
Small evolutionary changes within a population.
What is gene flow?
The movement of genes between populations.
How can Mutation affect an organism's traits
By changing the DNA sequence, it can create new traits.
How does sexual reproduction increase genetic variation?
By mixing genes from two parents, creating unique combinations.
Is genetic drift more common in large or small populations?
Small populations
What is macroevolution?
Large evolutionary changes that can create new species.
How can gene flow occur between populations?
Through migration or interbreeding.
Are all mutations harmful?
No, some mutations can be neutral or beneficial.
What role do genes play in sexual reproduction?
Genes carry the instructions that determine traits passed to offspring.
How does natural selection contribute to microevolution?
By favoring certain traits in a population over time.
How does gene flow affect genetic variation?
It increases variation by introducing new genes.
How do Mutations contribute to genetic variation in a population?
They introduce new genetic differences among individuals.
Why is genetic variation important for a population's survival?
What is a population bottleneck?
A sharp reduction in population size that decreases genetic diversity.
Can micro-evolution lead to macro-evolution? Explain.
Yes, accumulated small changes can result in new species.
Can gene flow prevent populations from evolving into new species? How?
Yes, by mixing gene pools and reducing differences.
Why are Mutations important for the process of Natural Selection?
They provide new traits that can increase or decrease survival and reproduction.
How does sexual reproduction influence evolution compared to asexual reprodutcion?
Sexual reproduction creates more genetic diversity, speeding up evolution.
How can genetic drift lead to evolution?
By randomly changing allele frequencies over generations.
(500) What evidence supports macro-evolution?
Fossil records, genetic data, and observed speciation events.
Why is gene flow important for maintaining healthy populations?
It helps maintain genetic diversity and reduces inbreeding.