The phrase "a more complicated sequence" is correct and usable in written English.
It can be used when discussing a series of events, actions, or elements that are intricate or difficult to follow.
Example: "The experiment revealed a more complicated sequence of reactions than initially anticipated."
Alternatives: "a more complex series" or "a more intricate pattern".
This latter process is mediated through an enormously more complicated sequence of biochemical steps, involving second messengers, protein kinases, and protein phosphatases.
In chimpanzee, there are more than two ERV sequences (figure 1b), resulting in a more complicated pattern requiring further illumination through future detailed sequence analysis.
In some TAAs, head and stalk domains alternate in the sequence, indicating a more complicated architecture.
The traditional doctor↔patient (dyadic) interactional sequence becomes a more complicated 'triadic' pattern.
The bird sequences show a more complicated pattern again, as can be seen in figure 3. It appears that, as well as containing the intended tawny frogmouth DNA, the sequencing reaction was contaminated with DNA from a common moorhen, a sandhill crane, and a red-fronted coot.
We study a more complicated scenario with nine users, each transmitting a sequence randomly selected from Table 1.
However, a century of further collecting has shown that horse evolution is a more complicated, bushy branching tree, rather than this oversimplified linear sequence (after Matthew 1926).
Moreover, the existence of both beneficial functional amyloid sequences, and putatively pathogenic 'misfolded' amyloid proteins suggests a more complicated sequence/structure relationship than is found in standard protein folding models.
Besides these, a more complicated classification system has been proposed which is based on either serological relationships or sequence similarities or both as well as their evolutionary relationships.
