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Mutations. These have quite a few different causes.

Sexual reproduction is a "more recent source" {beginning 600 million years ago} of genetic variability. The process of sharing genetic information, coupled with the random crossing and mixing of genetic information during the creation of a new organism, leads to another source of genetic variability.

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12y ago
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8y ago

There are three primary sources of genetic variation:

1. Mutations are changes in the DNA. A single mutation can have a large effect, but in many cases, evolutionary change is based on the accumulation of many mutations.
2. Gene flow is any movement of genes from one population to another and is an important source of genetic variation.
3.Sex can introduce new gene combinations into a population. This genetic shuffling is another important source of genetic variation.

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12y ago

The ultimate source of genetic variability is mutation.

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11y ago

Genetic mutations in an animals genes.

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14y ago

mutation

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Q: What is the ultimate source of genetic variation and the basis for the diversity of life on earth?
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Related questions

What is the ultimate source of genetic variation and the basis for the diversity of on earth?

mutation


What is the ultimate source of genetic variation and the bases for the diversity of life on earth?

mutation


What are three ways to get genetic variation?

Independent assortment of chromosomes, crossing over and Random fetiliztion


What is the ultimate source of genetics variation and the basis for the diversity of life on earth?

mutation


What is a source of genetic variation in organisms?

Human recombination is a significant source of genetic variation.


What is the ultimate source of variation needed for evolutionary change?

mutation


What is the source of genetic variation?

Mutation.


What is is the ultimate source of all diversity?

mutation


Is Natural selection a source of genetic variation in a population?

No, natural selection works on that genetic variation presented to it.


Mutations are a source of what in a species?

Genetic variation, which can lead to evoloution, and then potentially a new species.


Which is a source of genetic variation in sexually-reproducting organisms?

Basic source of variation in all organisms is mutation .


What is a source of genetic variation that involves the swapping of sections of chromosomes during meiosis.?

What is a source of genetic variation that involves the swapping of sections of chromosomes during meiosis.?