Words similar to spontaneous

Example sentences for: spontaneous

How can you use “spontaneous” in a sentence? Here are some example sentences to help you improve your vocabulary:

Spontaneous cell death prior to the experiments was minimized by maintaining exponential cell growth.
To eliminate any contribution of drug selection or tk gene template on the spontaneous mutation frequency in the tk mutagenesis assay, non drug-selected HSV replication-dependent mutations within an unrelated prokaryotic gene were measured using a LacZ shuttle plasmid assay.
For example, in the related Rip1-Tag5 model, the vascular addressins GlyCAM-1 and MAdCAM-1 are expressed in pre-malignant islets, but down-regulated in solid tumors; their downregulation coincides with lack of infiltration in this model of spontaneous anti-tumor immunity [ 19 ] . It is possible that sub-lethal radiation is altering the expression of endothelial adhesion molecules allowing binding and extravasation of activated tumor-specific lymphocytes.
Spontaneous rupture of the spleen occurs almost exclusively during acute infection, and usually during the primary attack [ 26].
Over the past three decades, researchers have found that remarkably low-level exposures to these toxins are linked with less overt symptoms of toxicity—intellectual impairments, behavioral problems, spontaneous abortions, or preterm births [6,7,8,9,10,11,12,13,14, 15,16,17,18,19,20,21,22,23,24,25,26,27, 28,29,30,31,32,33,34,35,36,37,38,39,40].