"vary in position" is a correct and usable phrase in written English
It means that something changes or differs in its location or arrangement. Example: The color of the leaves in the fall can vary in position, creating a beautiful mosaic of reds, oranges, and yellows all across the landscape.
Pseudobulbs (bulblike stems) vary in position, shape, and size, depending on the species, but usually are flattened and spaced along a creeping underground stem.
The peak in the π π∗ absorption lies between 2.15 and 2.65 eV, depending on the precursor; also, photoinduced metastable band-gap states vary in position, shape and strength.
The numbers were few and therefore percentages more likely to vary in position, and no trend was detected.
To obtain a psychometric function, we fitted the data with cumulative Gaussian functions that were free to vary in position along the x axis and slope.
Moreover, REP sequences are genome elements that can vary in position and number supplying additional variability to this set of selectable points of insertion.
Such boundaries could vary in position and this concept forms the basis of position effect variegation (PEV) in which the spread of heterochromatin, for example, domains of H3K9me3, results in the stochastic silencing of a neighboring gene (reviewed in 135).
The buttons also varied in position, size and color.
As the subtropical ridge varies in position and strength, it can enhance or depress monsoon regimes around their southern periphery.
For the other forms, the B, C and D genes were syntenic, but the A and E genes varied in position, being located either upstream or downstream from B, C, D group.
But the fourth disulfide bridge, also called wrapper disulfide bridge[ 35], varies in position, and sometimes is even lost.
The two families of Sesioidea, Sesiidae and Castniidae, varied in position but always grouped separately with other taxa, never strongly but sometimes with BP > 50%.
