Mechanisms of Evolution

Flashcard
•
Biology
•
12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is Gene Flow?
Back
Gene flow is the transfer of genetic material between populations, often through migration and interbreeding, which can introduce new genetic variations.
2.
FLASHCARD QUESTION
Front
What is Disruptive Selection?
Back
Disruptive selection is a type of natural selection that favors extreme values of a trait over intermediate values, leading to two or more contrasting phenotypes in a population.
3.
FLASHCARD QUESTION
Front
What is Natural Selection?
Back
Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring, leading to evolutionary changes.
4.
FLASHCARD QUESTION
Front
What does 'Survival of the Fittest' mean?
Back
'Survival of the fittest' refers to the concept that individuals with traits better suited to their environment are more likely to survive and reproduce.
5.
FLASHCARD QUESTION
Front
What is the role of Mutation in evolution?
Back
Mutation is a change in the DNA sequence that can introduce new traits into a population, providing raw material for evolution.
6.
FLASHCARD QUESTION
Front
What is Genetic Drift?
Back
Genetic drift is a mechanism of evolution that refers to random changes in allele frequencies in a population, which can lead to significant changes over time, especially in small populations.
7.
FLASHCARD QUESTION
Front
What is Stabilizing Selection?
Back
Stabilizing selection is a type of natural selection that favors average phenotypes and reduces variation, leading to a decrease in extremes.
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