★ Gaseous Exchange in Humans Quiz
Which of the following is NOT the structure of haemoglobin?
A. Each haemoglobin molecule contains 4 haem group
B. Haemoglobin is a quaternary structure
C. Every each haem group in haemoglobin can bind with 4 molecule of oxygen
D. Each haemoglobin has 2 α-chain and 2 β-chain polypeptide subunits
Select your answer:
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Genetics › ViewTo ensure scientific results are valid, what should you do during an experiment?
A. Conduct multiple trials.
B. Change hypothesis to fit result.
C. Have more then one independent variable.
D. Ignore results.
Bacteriology › View
Generation time of Escherichia coli is
A. 20 minutes
B. 20 hours
C. 20 days
D. 200 hours