which genetic codon of hemoglobin beta gene is mutated and what that mutation is? as in case of mutation in 7th genetic codon of hemoglobin GAG is altered to GTG and causes sickle cell disease?

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!