The phrase "are very tightly linked" is correct and usable in written English.
It can be used to describe a strong connection or relationship between two or more things, often in contexts such as academic writing, discussions about concepts, or analyses of relationships.
Example: "The economy and the environment are very tightly linked, as changes in one can significantly impact the other."
Alternatives: "are closely connected" or "are strongly associated".
"The world above ground and the world below are very tightly linked," said Dr. Wall.
We assume the two candidate SNPs are very tightly linked and therefore there is no recombination between them, so that the two-SNP haplotype can be thought of as a single marker with four possible alleles.
This can provide crucial physical information to positional cloning projects that might otherwise be fruitlessly aimed at a target gene on the basis of markers that are very tightly linked but physically distant.
So this ability was very tightly linked to people's genetics.
It's very tightly linked between cognitive science, near science and computer science".
Given that there is to be very tightly linked and high throughput communication between these two regions, if a component within the static region changes even slightly will this not necessitate a redesign in the modules of the dynamic region that it interacts with.
Anthox9 [51], is very tightly linked to the posterior Hox gene anthox1a (Figure S6).
The authors suggested that the Tph2 mutation must be very tightly linked to the gamma-TMT locus on LG 8 and may disrupt regulatory sequences.
The previously described MIN1, MLT1, and EYE2 loci were found to be mutually linked on chromosome 12 (Lamb et al. 1999), whereas the EYE3 locus is unlinked to the other three loci and maps to chromosome 2. Surprisingly, the MLT2 locus is very tightly linked to MLT1, with an estimated genetic distance of 0.50 map units, which is approximately equivalent to 50 kbp (Table 5).
"Supply and demand are very tightly balanced," he said.
Unlike other businesses, airlines are very tightly controlled in Asia.
