Which statement best descibes a cause and effects that occurs during the process of muscle contration?

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.

The most effective way to provide children with safety messages is to

Which best describes somatic mutations? they are usually passed on to offspring. they can cause different kinds of cancer. they always result from point mutations. they only occur in reproductive cell