• Do insects understand genetics?
• Or are copying errors capable of writing instruction books for managing machines?
• Of course, after making the designs of the machines themselves?
• How useful was the machine without operating instructions?
• And how was it useful before its parts were completed?
• And how were the operating instructions used before they were completed as well?

Do not tire yourself in thinking, it is enough to start constructive words such as "I grew up step by step" and "gradual beneficial adaptations" and other verbal fillers to answer Social insects, such as ants and bees, have in their genes designs for many of the machines that they use, from glands to secrete building materials, others to manufacture food for the young, and a third to release signals for communication...etc.

However, all these features are not activated at once but are activated according to the current role that the insect plays in the colony. For example, when the beehive needs a larger percentage of workers in certain jobs, it adjusts the incubation temperatures (larvae keeping rooms), and according to the temperature, new workers come out with more active genes for one job or another.

Bees that emerge from cooler pupae primarily undertake tasks that differ from those of bees stemming from warm pupae...The influence of temperature on metamorphosis is known from many experiments on other insects.

Unique to honeybees is that they themselves determine the temperature at which their sisters will develop...This adaptability of the system rests on a genetic component expressing itself in the deliberate raising of particular specialists in disproportionate numbers.

Source:  Jürgen Tautz et al., "The Buzz about Bees: Biology of a Superorganism" (2008) p. 232, 254, 265