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Explain how DNA is used to make proteinsA 5

Question

Explain how DNA is used to make proteinsA 5

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Solution

The process of using DNA to make proteins involves two main steps: transcription and translation.

  1. Transcription: This is the first step in the process. It occurs in the nucleus of the cell. During transcription, an enzyme called RNA polymerase binds to the DNA molecule and starts to read its sequence. As it reads the sequence, it builds a strand of messenger RNA (mRNA) that is complementary to the DNA strand. This mRNA strand carries the genetic information from the DNA out of the nucleus and into the cytoplasm of the cell.

  2. Translation: This is the second step in the process. It occurs in the cytoplasm of the cell, specifically on the ribosomes. During translation, the mRNA strand is read by a complex of molecules called the ribosome. As the ribosome reads the mRNA sequence, it translates the genetic information into a sequence of amino acids. These amino acids are then linked together to form a protein.

In summary, DNA is used to make proteins through a two-step process. First, the genetic information in the DNA is transcribed into a mRNA molecule. Then, this mRNA molecule is translated into a protein.

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