With a few exceptions, each human cell contains DNA in its nucleus.Which statement about any cell containing DNA is true?
A) The entire genome is expressed in each cell.
B) The cell discards some of its DNA so that only genes with a function in that cell are retained.
C) Cells synthesize RNA transcripts from its DNA before discarding the DNA.
D) Different genes may be expressed at different times in a single cell.
E) Cell functioning differs depending on the DNA present in the cell.

Question

Quizplus · Accepted Answer

Different genes may be expressed at different times in a single cell. This is because each cell has the same DNA, but different genes are turned on or off depending on the cell's function and stage of development. This allows for specialized cell types and tissue differentiation.

With a Few Exceptions, Each Human Cell Contains DNA in Its