An Upregulated Cell Has an Increase In

Question

An upregulated cell has an increase in
A)the amount of DNA in the nucleus.
B)the number of molecules the cell secretes.
C)the concentration of ligands that bind to the receptors.
D)the number of receptors available for binding.

Accepted Answer

An upregulated cell means that there is an increase in the expression or number of a particular gene or protein. Therefore, the number of receptors available for binding would increase, making D the best choice. A, B, and C are not necessarily associated with upregulation.