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If DNA can’t leave the nucleus, how do those instructions get to the ribosomes, who actually MAKE the proteins?

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coge4eva

Answer: The instructions in the DNA is copied into an mRNA (messenger RNA) which then moves out of the nucleus to the ribosome where it is used in protein synthesis.

Explanation: DNA is a genetic material found in the nucleus which contains the instructions needed to encode a protein or an RNA.

The instructions or information encoded in the DNA is first copied into an mRNA in a process known as transcription. This process takes place in the nucleus.

The mRNA synthesized from the DNA then leaves the nucleus and gets to the ribosome where it is used as a template for protein synthesis. The instructions encoded in the mRNA is read in the ribosome and is converted into amino acid sequence of a protein.

mahima6824soni

The DNA never leaves the nucleus, instead, the DNA transcribes the information into mRNA which travels outside the nucleus.

The process is called Transcription.

Protein Synthesis

  • The process of protein synthesis is carried out in two steps, transcription and translation.

  • The process of converting the information of DNA into RNA is called transcription.

  • Translation is the process in which the concerted information is translated into protein.

Thus, the DNA never leaves the nucleus and gives the information to mRNA, the ribosomes get the instruction to make protein.

Learn more about protein synthesis, here:

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