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Genetic drift is a mechanism of evolution that causes random changes in allele frequencies in populations, leading to reduced genetic variation.
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Learn about Darwin's theory of evolution and natural selection on Khan Academy.
Let's explore the concept of genetic drift. Skip to main content. If you're seeing this message, it means we're having trouble loading external resources on our website. ... Natural Selection and Genetic drift. Acquired vs Inherited Traits. Science > Class 10 Biology (India) > Heredity and evolution >
According to the Genetic drift chapter, "The bottleneck effect is an extreme example of genetic drift that happens when the size of a population is severely reduced. ... change our gene pool we call that evolution and so in the first two podcasts I talked about natural selection and how natural selection can cause changes in the gene pool in ...
High school biology - NGSS (DEPRECATED) Course: High school biology - NGSS (DEPRECATED) > Unit 7. Lesson 3: Natural selection and evolution. Natural selection and evolution. Creativity break: why is creativity important in biology?
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Test your knowledge of population genetics!
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DNA, or deoxyribonucleic acid, is the molecular basis for inheritance, discovered in the mid-1800s and understood in 1953 with the double helix structure. Composed of a sugar-phosphate backbone and base pairs (adenine-thymine, guanine-cytosine), DNA stores genetic information, replicates, and expresses traits. The human genome contains 6 billion base pairs across 46 chromosomes, making it a ...