Which protein has a quaternary polypeptide structure and carries 80% of the body’s iron?
a. Serine
b. Valine
c. Hemoglobin
d. Insulin
e. Tryptophan
Answer: C
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Irradiation extends the shelf life of certain fruits, allowing them to retain desirable qualities for up to _____ days
a. 3 b. 8 c. 12 d. 16 e. 25
A double-blind experiment is one in which:
1.both the scientists and the subjects know who is receiving the treatment. 2.neither the scientists nor the subjects know who is receiving the treatment. 3.only the scientists know who is receiving the treatment. 4.only the human subjects committee and the scientists know who is receiving treatment.2
Angel food cake pans are usually greased on the bottom and sides
Indicate whether the statement is true or false
What is a common secondary consequence of metabolic defects?
A. bacterial infections B. nutritional deficiencies C. arthritis D. cancer E. autoimmune disorders