The phrase "a patchy pattern of" is correct and usable in written English.
It can be used to describe something that is inconsistent or irregular in nature, often referring to a distribution or occurrence that is not uniform.
Example: "The study revealed a patchy pattern of rainfall across the region, leading to drought in some areas while others experienced flooding."
Alternatives: "an irregular pattern of" or "a sporadic pattern of".
Microliths were common worldwide by the mid-Holocene epoch, but have a patchy pattern of first appearance that is rarely earlier than 40,000 years ago9,10, and were thought to appear briefly between 65,000 and 60,000 years ago in South Africa and then disappear.
The ΔTEC map in Fig. 2 shows that there coexisted two types of TEC perturbations; a patchy pattern of TEC enhancement was noted at Kokubunji, which can be distinguished from the concentric pattern.
In vivo, however, we observed a patchy pattern of distribution of hMSC-scFvEGFRvIII in the tumor.
Macroscopic views of adult intestine revealed a patchy pattern of expression of the GFP transgene (Figure 4B and C).
In contrast, TP25.99 revealed a patchy pattern of immunoreactivity in V1 of enucleated animals.
This might exactly be the strategy used in cats, leading to a patchy pattern of ocular dominance columns.
The regions of contrast enhancement revealed a patchy pattern typical of non-ischemic injury.
In Kv3.1 KO mice, GFAP staining significantly increased in cerebellar cortex, where Kv3.1 is normally highly expressed, but displayed in a patchy pattern in parts of the hippocampus.
Rapes are concentrated in the inner city areas but follow a patchy pattern in some parts of the periphery.
Importantly, while normal intestinal renewal follows a random, patchy pattern of tissue replenishment (e.g. Fig 3A), escargot loss or the ectopic expression of the mir-8 microRNA resulted in a homogeneous, salt-and-pepper distribution of newly differentiated cells (Fig 3B and C).
Utx Δ mat- zyg- mutant larvae show complete loss of Ubx expression in a patchy pattern in haltere and third leg discs (Fig. 4C).
