LIFE SCIENCE

Detailed explanation-1: -DNA cannot leave the nucleus, so a copy is made in the form of a similar nucleic acid called RNA (ribonucleic acid) during transcription. After DNA is used to make RNA, the RNA is then used to make proteins during translation by ribosomes in the cytoplasm.

Detailed explanation-2: -For example, while DNA is too large to fit through the nuclear pores and so remains within the nucleus, mRNA molecules are smaller, so they can move out through the nuclear pores and toward ribosomes in the cytoplasm to carry out the process of protein synthesis.

Detailed explanation-3: -This mRNA can undergo processing in the nucleus. And once this is complete, the mature mRNA can then exit the nucleus through the nuclear pores to enter the cytoplasm. In the cytoplasm, the mRNA can bind to a specialized organelle called the ribosome.