Which correctly describes the function of the dna ligase enzyme?
a)copies a dna molecule
b) repairs breaks in the dna backbone
c) cuts dna to create sticky ends
d) produces a glowing green color question

Types of scientific inquiry that biologist engage in that cannot be completely controlled

Long term exposure to waves can cause sunburns and skin cancer.

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures