Sickle cell anemia is caused by a defect in the
A. oxygen-carrying pigment hemoglobin.
B. ability of the blood to clot.
C. ability of red blood cells to fight infection.
D. chloride ion transport protein.
A. oxygen-carrying pigment hemoglobin.
You might also like to view...
Osteogenesis imperfecta is a rare human condition caused by a mutation in a gene encoding Type I collagen. In some forms of the disease, the mutation leads to the production of procollagen that has a defective extension sequence; this defect interferes with the assembly of functional collagen fibers. Which of the following symptoms would you expect to see in individuals with osteogenesis
imperfecta? A. Very weak bones. B. Defective kidneys and capillaries. C. Thin discs between vertebrae. D. Respiratory problems/lung defects. E. Very strong tendons and ligaments/tight joints.
Apoptosis is ____
a. cell determination b. cell induction c. a mechanism of cellular adhesion d. programmed cell death e. cell differentiation
Type A blood will NOT agglutinate when
mixed with a. type B blood. b. type A blood. c. type AB blood. d. type O blood. e. types A and O.
Chemoautotrophs are the dominant primary producers in oxygen-deficient environments, such as the hydrothermal vents of the deep ocean floor
Indicate whether the statement is true or false