Where do Earth’s convection currents occur? A the lithosphere
B tectonic plates
C the asthenosphere
D the subduction zone

If a checkpoint detects damaged dna, the checkpoint may

Involving transcription and translaton. explain the causes and effects of damage to the genetic code.

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.