The phrase "an exception forms" is correct and usable in written English.
It can be used in contexts where you are discussing a situation or rule that does not apply in a specific case, indicating that something different or unusual is occurring.
Example: "In most cases, the policy is strictly enforced; however, an exception forms when there are extenuating circumstances."
Alternatives: "an exception occurs" or "an exception arises".
With a few exceptions, forms of collage and assemblage dominate this show: the putting together (or simply putting side by side) of existing images and objects prevails.
An exception is formed by DWG and BEAF-32, which exhibit substantial overlap in their binding pattern.
While passive immunotherapies often engage the immune system independent of the knowledge of defined tumor antigens (an exception being some forms of adoptive cell therapy ), vaccines elicit specific immune responses by targeting defined tumor antigens.
Only Trinidad and Tobago forms an exception to the migrant dependence pattern, possibly as a result of its domestic tradition of low-wage plantation labor (the World Bank's figure for the second apparent HRC outlier Equatorial Guinea (GHQ) is probably wrong, as press reports indicate a migrant population of one-third of the total population; "Equatorial Guinea," [16]) (Fig. 3).
Again, CLE68 from M. truncatula forms an exception with a larger gap between the first and the second domain.
Ghana is situated within the predominantly economically marginalized and politically unstable region of West Africa, but forms an exception.
B. lenta forms an exception as the isoform most similar to Bet v 1a has a sequence similarity of 95.5% and encodes a protein that differs by seven amino acids.
The forebrain of the teleost Arius forms an exception to the rule: 'the more pronounced the eversion, the deeper the sulcus externus', since in that genus eversion is advanced, but the sulcus externus is poorly developed (Figs. 4g, 5j). 5.
Groups located in Côte d'Ivoire and Ghana, where the coast is less irregular and coastal fisheries are relatively productive, form an exception.
