The genetic variability refers to the modification of the genetic material (genes) of a certain type of species or population. For instance: types of bears, types of snakes, types of mosquitoes.
This genetic variability is the one allows mutations that arise from a particular species between its parents and its descendants. These changes indicate that the population or species is evolving. In other words, without genetic variability, a species does not evolve.
Genetic variations can occur by combination of genes, by mutations or by sexuality.
- Genetic recombination (gene recombination). When genes are transferred from one population to another.
- Chromosome Combination (Mutations). They occur when DNA (deoxyribonucleic acid) is combined. In this case, a mutation can have a noticeable consequence.
- Sexuality. It can originate diverse combinations of the genes (of the father and mother) that favor genetic variability.
Examples of genetic variability
- Types of bears. Brown Bear, Grizzly Bear, Kodiak Bear, American Black Bear, Asiatic Black Bear, Lipped Bear, Spectacled Bear, Malay Bear, Polar Bear, Panda Bear.
- Types of tortoises. Mediterranean tortoise, Russian tortoise, star tortoise, sulcata tortoise, box tortoise.
- Types of snakes. King cobra, copperhead snake, black mamba, corn snake, rattlesnake, boa constrictor, eastern coral snake, black rat snake, Burmese python, royal python, reticulated python, garter snake, green anaconda, moccasin water, green python.
- Types of bees. Honey bees, bumble bees, stingless bees, Africanized bee, solitary bees, parasitic bees, nocturnal bees.
- Types of tigers. Bengal tiger, Siberian, Sumatra, Malay, Indochinese tiger, South China tiger.
- Types of mosquitoes. Aedes aegypti, Aedes albopictus, Culex, Anopheles, Mansonia, Ochlerotatus, Psorophora.
- Types of frogs. Red Eyed Frogs, Goliath Frog, Golden Poison Frog, Cane Toad, Australian Green Tree Frog, Table Mountain Ghost Frog, Torrent Tree Frog, Green Eyed Frog, Suriname Toad, Water Lily Frog, Wood Frog gray, Cainarachi poison frog, long-fingered frog, desert rain frog, Granular poison frog, Australian frog, water frog, Darwin’s frog, African wrinkled frog.