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.

Each cell has (Sorry I don't know this one either) genes activated depending on it's job and what kind of cell it is.

It is the presence of Lactose 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 expressed.

An additional circular chromosome found in some bacteria that is used in genetic engineering. Plasmid

a. seed plant structure. 1. the three main plant organs are roots, stems, and leaves. a fourth kind of tissue, meristematic tissue, is responsible for plant growth. meristematic tissue is the only plant tissue that produces new cells by mitosis. plants can lose water out of their leaves as they exchange gases with the air

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wegner's theory did not explain how the continents could move

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