The interaction of the alpha and beta subunits to form the hemoglobin molecule is an example of _______ structure.
a. primary
b. secondary
c. tertiary
d. quaternary
Ans: b. secondary
Biology & Microbiology
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Mitosis is a process that is unique to humans
a. True b. False Indicate whether the statement is true or false
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Amoebic dysentery is most commonly contracted through
A. contaminated blood products. B. direct transmission from one host to another. C. insect bites. D. puncture wounds. E. the fecal-oral route from contaminated food or water.
Biology & Microbiology
Vertebrate locomotion results from the contraction of muscles anchored to what other tissue?
A. Bone B. An exoskeleton C. Nerves D. Each other E. The plasma membrane
Biology & Microbiology
In eukaryotes, which three factors appear to encourage the specific association of RNA polymerase(s) to a specific region of DNA?
What will be an ideal response?
Biology & Microbiology