Which mechanism is the cause of difference in color between wild Indian ring necked parakeet and domesticated parakeet?

The mechanism that causes the difference in color between wild Indian ring-necked parakeets and domesticated parakeets is selective breeding.

Selective breeding is the process of breeding animals or plants with specific traits in order to produce offspring with those same traits. In the case of Indian ring-necked parakeets, humans have selectively bred them for centuries to produce a wide variety of colors, including blue, green, yellow, and pied.

Wild Indian ring-necked parakeets are typically green with a black ring around their necks. Domesticated parakeets come in a variety of colors, including blue, green, yellow, and pied.

The difference in color between wild and domesticated Indian ring-necked parakeets is due to the fact that domesticated birds have been selectively bred for specific colors.

* This process of selective breeding has resulted in a wide variety of color mutations, which are changes in the genes that control the production of melanin.

* Melanin is the pigment that gives birds their color, so by altering the amount and type of melanin produced, breeders have been able to create parakeets with a variety of different colors.