The smallest cells in the domain Bacteria are:
A) viruses
B) archaea
C) mycoplasma
D) cyanobacteria
Ans: C) mycoplasma
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Which of the following is true about the cell-wall-less archaeal genus Thermoplasma?
A. They are spherical at temperatures below 59°C. B. They are spherical at temperatures below 59°C and they are filamentous at temperatures at 59°C and higher. C. They are filamentous at temperatures at 59°C and higher. D. They are non-motile.
tissue consists of interacting cells and
a. blood cells. b. pigmented skin cells. c. extracellular substances. d. nerve cells. e. none of these.
The bone tissue that consists of units called osteons is called _____ bone tissue
Fill in the blank(s) with correct word
The first cloned cat, called Carbon Copy, was a calico, but she looked significantly different from her female parent because _____
A) the cloning was done poorly and it was likely that some contaminating cat DNA became part of Carbon Copy's genome B) fur color genes in cats is determined by differential acetylation patterns C) cloned animals have been found to have a higher frequency of transposon activation D) X inactivation in the embryo is random and produces different patterns