Hemoglobin Contains Four Polypeptide Chains Per Molecule

question 79

Multiple Choice

Hemoglobin contains four polypeptide chains per molecule. As individual items, and with no other information, the best evidence for this conclusion is

• A) hemoglobin contains four iron atoms per molecule.
• B) a molecule of hemoglobin binds four atoms of oxygen.
• C) hemoglobin crystallizes in the cubic crystal form.
• D) the molecular weight of hemoglobin is 64,000.
• E) there are four N-terminal valine residues per molecule of hemoglobin.

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Definitions:

Confidence Interval

A selection of numerical values, from the analysis of sample stats, predicted to encapsulate the value of an unknown attribute of the population.

Mean

The arithmetic average of a set of numbers, calculated by adding all the numbers together and dividing by the count of those numbers.

Standard Error

A statistic that measures the dispersion of sample means around the population mean, estimating the variability within a data set.

Confidence Interval

Newly defined: A measure indicating the reliability of an estimate, often used to infer about the population parameter from sample data.