The answer is sexual reproduction
Genetic variation, which can lead to evoloution, and then potentially a new species.
True
In the gene pool
A large population increases genetics variation. Mutation will also increase genetics variation.
If a population dwindles, there is low genetic variation and a species may risk extinction.
No, natural selection works on that genetic variation presented to it.
The main source of genetic variation is a large population with a large gene pool.
The primary original source of genetic variation in a population is mutation. Mutations are changes in the DNA sequence that can lead to new genetic variations in populations, providing the raw material for evolution to occur.
Human recombination is a significant source of genetic variation.
Genetic variation allows a population to adapt to a changing environment.
Mutation.
Independent assortment of chromosomes, crossing over and Random fetiliztion
When there is low genetic variation in a population the species produced are unlikely to withstand diseases.
The genetic variation of a population is a measure of how much individuals in a population differ genetically.
Genetic variation, which can lead to evoloution, and then potentially a new species.
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.
Span the full spectrum of a population's genetic variation. <apex> Reflects the genetic variation of a population...