Why do you think purines bond with pyrimidines in the dna ladder?

What is the best approach to selecting safety equipment for an activity

Adrug is tested in the laboratory and is found to create holes in both mitochondrial membranes. scientists suspect that the drug will be harmful to human cells because it will inhibit a) the citric acid cycle. b) oxidative phosphorylation. c) glycolysis. d) the citric acid cycle and oxidative phosphorylation.

Kara started an exercise program kara's sister works out with her on a regular basis and even talks to kara about her progress in the scenario what is another name for kara's sister? a. goal-setterb. self-monitorc. support systemd. nutritionist