Imprinting can be cell-type specific; for example, this region of chromosome 15 is ONLY imprinted in neurons and a few other spe
cific cell types, but it is not imprinted in most cells in the body, such as bone, liver, and heart cells. Which of the following statements are true about a healthy individual without Prader-Willi or Angelman syndrome? ( Choose two answers) a. Maternal and paternal copies of SNRPN are expressed at the same level in heart cells.
b. The maternal and paternal copies of UBE3A are differentially expressed in bone cells.
c. The maternal copy of SNRPN has DNA methylation at its promoter in liver cells.
d. Expression of the paternal copy of UBE3A is silenced in neurons.
Genetic imprinting is DNA modifications that result in changing the expression but not the sequence. Factors That affect such changes present both within and outside the cell.
It is a result of the silencing of either maternal or paternal alleles in a pair. This occurs random and leads to phenomenon like X-inactivation. The mechanism involves methylation of the DNA to be silenced. paternal copy of UBE3A is silenced in neurons.
Explanation:The reason is because a chemical change is that happens due to a type of chemical such as a oven or microwave heating it up and dough is heating up and forming crust and you can’t change it
In binary fission, the two new cells that are formed are susceptible to the same antibiotic,<span>best describes the different modes of bacterial reproduction.</span>
It can result in decreased immunity, digestive problems, fertility problems, lower mental alertness, slowed growth. Amino acids play many different roles in the body and the symptoms vary.
