A geneticist at the French national center of scientific research adds an enzyme to a sample of human DNA to see if the DNA changes which result would best support the conclusion that the enzyme had no effect on the DNA

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Paint and solvents pose no potential hazard to human health. select the best answer from the choices provided t f