. Variations in a natural population occur because of mutations and genetic recombination. Justify the statement by providing an elaborate explanation. 

Variations in natural populations are essential for the survival of a species over time. Mutations and genetic recombination are two processes that can lead to genetic variation in populations.

Mutations are changes in the DNA sequence of an organism's genome. They can occur spontaneously during DNA replication or as a result of exposure to environmental factors such as radiation, chemicals or viruses. Mutations can be beneficial, harmful, or have no effect on the organism, but they are the ultimate source of genetic variation in a population. Beneficial mutations can lead to the development of new traits that provide an advantage to an organism in its environment, while harmful mutations can lead to diseases or malfunctions. Neutral mutations, on the other hand, have no effect on the organism's fitness and are often used as genetic markers in studies of population genetics.

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