Which statement best describes how cell development affects gene
expression in a cell?
OA. The formation of proteins during early development must occur
before any genes can be expressed.
B. During cell development, genes for proteins that are not needed by
the cell are removed from the cell's DNA.
C. All of a cell's genes are expressed during development and are
turned off after each protein is assembled.
OD. Signals during development cause some genes to be turned on but
not others, resulting in the formation of only certain proteins.