Mutation and sexual recombination.
The two main sources of genetic variation are sexual reproduction, and mutation. Sexual reproduction is more common.
Natural and Artificial Selection
Mutation and recombination are the two main sources of genetic variation in a population. Mutations are changes in the DNA sequence, while recombination occurs through the mixing of genetic material during the formation of gametes.
The two main sources of genetic variation are gene shuffling and mutations. A mutation is a process wherein the structure of a gene is altered.
The main source of genetic variation is a large population with a large gene pool.
Mutations, recombination, gene flow.
The two main sources of genetic variation are mutations, which are changes in the DNA sequence, and recombination, which occurs during meiosis when genetic material is exchanged between homologous chromosomes. These processes contribute to genetic diversity within populations.
mutations, recombination, random pairing of gametes
The two main sources in water vapor are farming and manufacturing
The two main sources of air pollution are the toxins released from factories and automobiles.
Without variation natural selection would have nothing to select from that would confer survivability and reproductive success. on the organisms being selected against the organisms conspecifics and the immediate environment. Mutation and sexual recombination provide the main sources of this variation that is needed to make selection work. Mutation is the variation presented that causes the real adaptive change that can lead to speciation.
No, the main sources of the Nile are the White Nile and he Blue Nile