What change (or transition) in habitat did whales’ ancestors make?

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities

What are the pros and cons of transect sampling?

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.