Materials are able to move across a cell membrane through one of two methods: active transport or passive transport. what is the difference between active transport and passive transport? biology

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

What should be the strand of complementary dna produced by the strand of dna shown below cgt ata

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.