DNA methylation is used in some genes to differentiate which gene copy is inherited from the father and which gene copy is inherited from the mother, a phenomenon known as imprinting. Histones are proteins that are the primary components of chromatin, which is the complex of DNA and proteins that makes up chromosomes.his is the type of epigenetic change that is responsible for the inactivated X chromosome of females. In contrast, methylation of a different lysine (K4) on the same histone (H3) is a marker for active genes (Egger et al ., 2004).
Perceptual adaptation is a phenomenon that occurs for all of the senses, including smell and touch. An individual can adapt to a certain smell with time.
They are able to adapt when the climate of the habitat is very dry or exceedingly wet. An adaptation is the change, or adjustment made by the plant or animal which increases its chance of survival in its environment. There are two types of adaptations; physical adaptations and behavioral adaptations. A physical adaptation can be a part of the plant or animal that has evolved in a certain species over time to enable it to survive better. A behavioral adaptation is a behavior or action that an organism does or uses to help it survive better.