Hemoglobin is a protein composed of two pairs of polypeptide chains. What is the highest level of protein structure, represented by hemoglobin?
a) tertiary
b) secondary
c) primary
d) quaternary
Ans: d) quaternary
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The anatomical structure identified with the letter "D" in the accompanying figure is the ____
a. myocardium b. pulmonary veins c. inferior vena cava d. right atrium e. heart apex
Cells form a ________ arrangement when cells in a chain snap back upon each other forming a row of cells oriented side by side.
Fill in the blank(s) with the appropriate word(s).
Describe how cells control the size of the poly-A tail on mRNA molecules in order to regulate translation initiation. Next explain how a kinase inhibitor could decrease gene expression in regards to polyadenylation? Your answer should include the
following proteins in your answer: Maskin, PARN, CPEB, eIF4E, eIF4G, and Poly-A polymerase. What will be an ideal response?
Animals such as cats, worms, and butterflies are classified as:____
Fill in the blank(s) with the appropriate word(s).