HURRY NEED THIS ANSWER Photography of the scene of a car crash could show this important piece.

A. a determination of whether or not the stoplight was red or green

B. the locations of the cars before the crash

C. the skid marks showing when the cars began to brake and the point of collision

D. drivers' identities

Pls me i need this ! each cell has genes activated depending on it's job and what kind of cell it is. it is the presence of that causes the repressor protein to fall off and unblock the gene on the lac operon. if a gene is turned on then it is being an additional circular chromosome found in some bacteria that is used in genetic engineering.