The ability to roll your tongue is determined by a dominant gene (r) while recessive gene results in the inability to roll the tongue (r). a man and his wife can both roll their tongues and are surprised to find that thier son cannot. explain this by showing the genotypes of all three persons

Baroreceptors in the aortic arch and carotid bodies are mechanoreceptors that respond to the stretch that occurs in these arterial walls with changes in blood pressure. if pressure changes rapidly, the baroreceptors initiate a feedback mechanism that reduces blood pressure; however, if pressure changes slowly, as in developing hypertension, the receptors do not respond. given this information, the baroreceptors are most likely which type of receptor?