Thalassemias are associated with a(n) ____
a. amino acid substitution
b. extended chain in beta globin
c. imbalance in the production of alpha or beta globin
d. excessive synthesis of beta globin
e. altered rate of oxygen transport
c
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Sickle-cell disease is a disorder that results in malformed hemoglobin molecules. What is the result of this in terms of hemoglobin function?
A. Hemoglobin has an increased ability to bind to and transport oxygen in red blood cells. B. White blood cells begin to pick up hemoglobin molecules instead and this decreases their ability to function in the immune system as intended. C. Hemoglobin has an increased ability to bind to and transport carbon dioxide in red blood cells. D. Hemoglobin has a reduced ability to bind to and transport oxygen in red blood cells.
You take a deep breath and then exhale forcibly. The amount of air left in your lungs is the ____
a. residual volume b. respiratory rate c. vital capacity d. tidal volume e. inspiratory reserve volume
This kind of mutation causes a ribosome to stop protein syntheses by introducing a stop codon too early.
A. missence B. nonsense C. point D. All of these answers are true.
Caulobacter is a genus of bacteria with a unique cell division cycle that yields two morphologically distinct cell types.
Answer the following statement true (T) or false (F)