Sentence examples for be present only once from inspiring English sources

Both are supposed to be present only once in the maize genome.

We counted how many times each gene was observed (with the expectation that each gene should be present only once) in each transcriptome.

The haplotype analysis also suggests that 18 of the 28 undetectable alleles in the one-allele cohort seem to be present only once in more than 400 alleles.

Epsilon Cyclase (EC), a gene involved in the carotenoid biosynthetic pathway [ 16], was chosen as the wheat reference gene as it is known to be present only once per genome and genome-specific sequences were available.

Haplotype analysis of these 28 probands revealed 3 haplotypes shared among ten families, suggesting that 18 of the 28 missing alleles were rare enough to be present only once in the cohort.

Unfortunately, in that model exactly one of each duplicate is immediately lost just after the duplication event, and the method proposed cannot be adapted because the underlying algorithms require that each marker synteny anchor be present only once in each genome.

Public health teaching is allocated much less time than clinical subjects; many skills may be presented only once in the classroom but never really practiced.

Thus the picture area is illuminated twice during each complete picture transmission, although each line in the image is present only once during that time.

Each auditory stimulus was present only once per trial.

However, the Ames genotype was present only once (although genetically similar isolates to the Ames strain were also identified in Texas, USA).

Many restriction sites are present only once or twice in the sequenced fragment, making our dataset lowly informative about the association of ISR with particular sequence motifs.