RNA and other molecules leave the nucleus through structures called nuclear pores.

Here's a breakdown:

* Nuclear pores are complex protein channels that act as gates in the nuclear envelope. They regulate the passage of molecules between the nucleus and the cytoplasm.

* RNA (ribonucleic acid), which carries genetic information from DNA, is a key molecule that travels through nuclear pores.

* Other molecules that pass through nuclear pores include proteins, ribosomes, and regulatory factors.

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