is in a cell protein can be from dna by translation transcription then why endoplasmic reticulum make proteins isn't it is sufficient for the cell or my doubt is proteins made from dna goes where and endoplasmic reticulum made protein go where
- The instructions for proteins are encoded in sequences of DNA. The process of “reading” DNA sequences and using them to build a protein requires two phases: transcription and translation.
- During transcription, the instructions in DNA, which are found in short sequences of DNA called codons, are copied into RNA. After being transcribed, the finished RNA, called messenger RNA (mRNA), binds to the ribosome where it undergoes translation.
- Translation is the process where a long string of codons is converted into a long string of amino acids. Each string of amino acids arranged in a particular order codes for a specific protein.
- After they are translated, they are moved through a system of internal membranes before being distributed throughout the rest of the cell. At some point in this process, they are modified to their functional form.
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