The restriction enzymes that cut the bacteriophage dna cannot cut the bacterial chromosomal dna. explain this statement. a. the bacteria can cut the viral dna at its specific restriction site, but they cannot cut their own dna since bacterial chromosomal dna has altogether a different dna sequence than the viral dna / b. the bacteria can cut the viral dna at its specific restriction site but protect their own chromosomal dna by modifying its bases and blocking the restriction enzyme / c. the bacteria can cut the viral dna at its specific restriction site but protect their own chromosomal d

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false

What is responsible for the uneven heating between the poles and the equator on any given day

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.