Which of the following cell junctions are responsible for allowing the bladder lining to stretch, thus
accommodating increasing volumes of urine?
a. anchoring junctions
b. gap junctions
c. tight junctions
d. anchoring junctions and gap junctions
e. anchoring junctions, tight junctions and gap junctions
A
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The enzyme that allows the reforming of a circular plasmid following conjugation is called _________
A. relaxosome B. relaxase C. F' factor D. nucleoprotein E. pili protein
An mRNA that contains the coding sequence for two or more structural genes is called a
A. polyintronic mRNA. B. polyextronic mRNA. C. polycistronic mRNA. D. polyexpressive mRNA. E. polyrepressor mRNA.
What subphylum do spiders belong to?
A. Arachnida B. Arthropoda C. Chelicerata D. Crustacea E. Malacostraca
Why are microsporidia so hard to classify?
A. When compared to other eukaryotic organisms, microsporidia are extremely small. B. They are very rare. C. They lack nuclei. D. The intracellular parasitic lifestyle greatly reduces the need for functional organelles.