Asap when during the cell cycle are chromosomes visible a. only during interphase b. only when they are being replicated c. only during cell division d. only during the g1 phase
Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different
Fill in the blank with the best word to complete the sentence. white blood cells protect against and aid in blood clotting when injuries are sustained.
How do the lungs excrete waste material from the body? the lungs push carbon dioxide from red blood cells out of the body through exhalation. the lungs convert poisonous gas into oxygen that the body can use. the lungs push nitrogen into the digestive system so that it can be removed by the body. the lungs protective cells in the body break down gaseous urea.