Final answer:
In plants, the silenced state of epialleles can be transmitted through successive generations through DNA methylation marks on the silenced epiallele that are not erased during gamete formation. Epigenetic modifications on the silenced epiallele allow it to remain silenced even in subsequent generations. The answer is option D.
Step-by-step explanation:
In plants, the silenced state of epialleles can be transmitted through successive generations through DNA methylation marks on the silenced epiallele that are not erased during gamete formation. It is important to note that epialleles are variations in gene expression that are not caused by changes in the DNA sequence itself, but rather by modifications to DNA and histone proteins that can influence gene activity.
During gamete formation in plants, DNA methylation marks are maintained on the silenced epiallele. These marks are then passed on to the next generation when the gametes fuse during fertilization. The epigenetic modifications on the silenced epiallele allow it to remain silenced even in subsequent generations.