Describe the relationship between pedersin cleaner shrimp and the sea slug

Number and variety of living organism; includes genetic, species, and ecological types

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?

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.