Unlike the 16S rRNA gene phylogenetics used to identify relatedness in Bacteria, the 18S rRNA gene is by itself unreliable for phylogeny of members in Eukarya
Indicate whether the statement is true or false.
Answer: TRUE
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Drugs called selective serotonin reuptake inhibitors (SSRIs) block reuptake of serotonin and are used to treat depression. Which of the following would occur in a patient given a SSRI?
A. Serotonin levels would decrease in the synapse. B. Serotonin levels would increase in the synapse. C. More serotonin would be released by the neuron. D. Less serotonin would be released by the neuron. E. The neuron would switch from serotonin to another neurotransmitter.
Embryonic stem cells are pluripotent, able to ____
a. divide an unlimited amount of times b. give rise to most, but not all body cell types c. give rise to any of the body cell types d. divide a limited amount of times e. give rise to different, unique individuals
Cyanide binds with at least one of the molecules involved in the production of ATP. Following exposure of a cell to cyanide, most of the cyanide could be expected to be found within the
a. mitochondria. b. ribosomes. c. peroxisomes. d. lysosomes. e. endoplasmic reticulum.
Which of the following ocular tissues and infections is mismatched?
A. Keratitis; infection of deep eye tissue B. Conjunctivitis; milky discharge and infection of eyelid lining C. River blindness; microfilariae visible in the vitreous chamber D. Trachoma; infection of epithelial cells