This picture shows normal blood cells, which are round, and sickle cells, which appear much longer. people with sickle cells suffer from sickle cell anemia, which is an inherited disease. it is caused by a change in a gene responsible for production of hemoglobin. this type of change is known as a(n) a) cancer. b) genotype. c) mutation. d) acquired characteristic.

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d