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Name the signal which helps protein to move in or out of the nucleus?

(a) Notch signal

(b) Paracrine signal

(c) Nuclear localization signal

(d) Chemical signals

The question was asked during an online exam.

This interesting question is from Nucleus in chapter Cell Structure and Functions of Life Sciences

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Correct choice is (c) Nuclear localization signal

The best I can explain: Nuclear localization signals are also known as a nuclear-export signal which helps protein to import and export in the nucleus through nuclear pores. These signals are specific amino acid sequences present on the proteins.

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