Mutations drive genetic variation from "summary" of The Biology Book by DK
Mutations, or changes in the DNA sequence, play a crucial role in driving genetic variation within populations. These alterations can arise spontaneously during DNA replication or through exposure to external factors such as radiation or chemicals. While some mutations may be harmful and lead to genetic disorders, others can provide an evolutionary advantage by creating new traits that enhance an organism's ability to survive and reproduce. Genetic variation is essential for the process of natural selection, where individuals with advantageous traits are more likely to thrive and pass on their genes to future generations. Mutations introduce new genetic material into a population, increasing the diversity of traits available for selection. This diversity allows for a...
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