A person inhales forcefully, what is the pressure in the lungs as compared to the atmospheric pressure during this forceful inspiration?
A. It loosens
B. It stays consistent
C. The pressure tightens
D. The pressure gets warmer
Select your answer:
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Molecular Genetics › ViewCytosine makes up 40% of the nucleotides in a sample of DNA from an organism. Approximately what percentage of the nucleotides in this sample will be thymine?
A. 10%
B. 20%
C. 40%
D. 80%
Macromolecules & Enzymes › View
Hemoglobin is a protein found in red blood cells that transports oxygen. If it is mutated then it is not as efficient in carrying oxygen. Why?
A. Mutated hemoglobin can still oxygen
B. Hemoglobin is a simple molecule
C. Structural changes of hemoglobin affects its ability to carry oxygen because the shape of protein impact its function
D. Normal hemoglobin must be larger than mutated hemoglobin