Using the book as a model (section 39.2, "aminoacyl-trna synthetases have highly discriminating amino acid activation sites" and "proofreading by aminoacyl-trna synthetases increases the fidelity of protein synthesis", page 714 in third edition), explain how an alanine trna synthetase might prevent the incorrect addition of the similar amino acids glycine and valine to its target trna.

true or false

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature about 37 degrees celsius (98.6 degrees f)? describe what might happened the temperature decreased by 10 degrees celsius.

Wich level of organization includes all the other levels or organizations

Been sitting here trying to take this test and don't know this answer! place the events of a feedback mechanism associated with body temperature in the correct order. ·nerve cells send message from skin to the brain ·body returned to normal temperature around 98.6 degrees f ·temperatures regulation center in the brain sends out signals ·body temperature exceeds 98.6 degrees f ·sweat glands throughout the body activate to cool off skin surface it is a 1 through 5 question in biology!