A gene that is normally transcriptionally active can be "silenced" if it is relocated (through experimental manipulation) to certain regions of the chromosome (e.g., near the centromere, which is "heterochromatin-rich"). This phenomenon is an example of

Respuesta :

Answer:

Position Effect

Explanation:

Position effect is referred to the effect on gene expression when the gene is translocated from the location it is on a chromosome to another location.

As it relates to gene silencing and euchromatic gene repositioning, Position effect variegation best explains it.

Position effect variegation occurs when a gene in some cells is silenced as a result Β of rearrangement of chromosomes which translocate or reposition euchromatic genes close to vicinity of heterochomatin. It is this abnormal chromosomal juxtaposition that leads to the gene silencing in stochastic pattern.