Which of the following occurs during photosynthesis? a. co2 is used to produce water b. co2 is absorbed by mitochondria c. co2 and h2o are converted to carbohydrates d. co2 and h20 are combined into carbonic acid

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.