This is possible to a degree by using in-game commands made available by enabling cheats. However, this command won't necessarily change a biome's blocks, but an area's biome classification.

Although Minecraft doesn't allow players to target specific structures or biomes in the teleport command's syntax, it's still possible to use it to find any biome or structure players need.

How to Teleport to the Taiga Biome in Minecraft For those of you playing on a creative world or simply wishing to spawn directly in the Taiga biome, you can use commands to teleport there.